Regina Little v. Kia Motors America, Inc.(081691) (Union County and Statewide) ( 2020 )


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  •                                        SYLLABUS
    This syllabus is not part of the Court’s opinion. It has been prepared by the Office of the
    Clerk for the convenience of the reader. It has been neither reviewed nor approved by the
    Court. In the interest of brevity, portions of an opinion may not have been summarized.
    Regina Little v. Kia Motors America, Inc. (A-24-18) (081691)
    Argued October 8, 2019 – Decided June 25, 2020
    PATTERSON, J., writing for the Court.
    In this class action, plaintiff Regina Little asserted claims on her own behalf
    and on behalf of other New Jersey owners and lessees of 1997, 1998, 1999, and 2000
    Kia Sephia vehicles distributed by defendant Kia Motors America, Inc., alleging that
    those vehicles had a defective brake system. The central question in this appeal is
    whether the trial court properly permitted plaintiff’s theory of damages based on the
    cost of brake repairs to be asserted classwide, supported only by aggregate proofs.
    Plaintiff filed this action against defendant in June 2001, asserting breach of
    warranty and statutory claims on her own behalf and on behalf of the putative class.
    In 2006, the class represented by plaintiff was defined as “[a]ll residents of the State
    of New Jersey who purchased or leased a model year 1995-2000 Kia Sephia within
    the six year period preceding the filing of the Complaint,” subject to certain
    enumerated exclusions. The matter was tried before a jury in a four-week trial.
    Plaintiff asserted two distinct theories of damages. First, she alleged that the
    defective brakes hastened each Kia Sephia’s depreciation, diminishing the vehicle’s
    value, and that all class members had thus overpaid for their vehicles. Second,
    plaintiff asserted that the class members incurred out-of-pocket costs due to the
    brake defect because the cars required more frequent brake repairs than they would
    have required absent the defect.
    Plaintiff premised the latter claim not on individualized proof of class
    members’ repair costs, but on an estimate by her expert, Raymond Scott King, that
    an average Kia Sephia owner would pay $1250 for brake repairs over the vehicle’s
    life as a result of the defect alleged. On cross-examination, King made a number of
    concessions, including that he did not have any data on what Kia Sephia owners
    actually paid for relevant repairs.
    The jury determined that defendant had breached its express and implied
    warranties and that the class had sustained damages. The jury found that the class
    members had suffered $0 in damages due to diminution in value but that each class
    1
    member had sustained $750 in damages “[f]or repair expenses reasonably incurred
    as a result of the defendant’s breach of warranty.”
    In post-verdict proceedings, defendant moved for a new trial and for an order
    decertifying the class on the issue of damages. The court left the jury’s liability
    verdict undisturbed but granted in part defendant’s motion for a new trial, limited to
    the issue of damages. The court concluded that it had erred when it submitted the
    question of out-of-pocket repair costs to the jury and instructed the jury to consider
    plaintiff’s second damages theory based on classwide proofs. Instead, the court
    determined that it should have required individualized proof of damages for the class
    members’ brake repairs. The trial court therefore granted defendant’s motion to
    decertify the class as to the quantum of damages each individual owner suffered.
    A court-appointed Special Master conducted a claims process, evaluated the
    class members’ individual claims, and recommended to the trial court that it award
    damages in the amount of $46,197.03 for the cost of repairs. The trial court
    accepted that recommendation, and, in 2015, final judgment was entered in
    plaintiff’s favor in that amount plus attorneys’ fees and costs.
    The parties cross-appealed. The Appellate Division reversed the trial court’s
    post-trial determinations, reinstated the jury’s award for out-of-pocket repair costs
    based on plaintiff’s aggregate proofs, and remanded for an award of attorneys’ fees.
    
    455 N.J. Super. 411
    , 416-36 (App. Div. 2018). The appellate court held that,
    notwithstanding the jury’s rejection of plaintiff’s diminution-in-value theory, the
    trial court should have ordered a new trial on both theories of damages, which it
    found were not “fairly separable from each another.” See 
    id. at 426
    .
    The Court granted defendant’s petition for certification, “limited to the issue
    of damages.” 
    236 N.J. 113
     (2018).
    HELD: Although aggregate proof of damages can be appropriate in some settings,
    the Court considers such proof improper as presented in this case. The trial court
    erred when it initially allowed plaintiff to prove class-members’ out-of-pocket costs
    for brake repairs based on an estimate untethered to the experience of plaintiff’s
    class. The trial court properly ordered individualized proof of damages on
    plaintiff’s brake-repair claim based on the actual costs incurred by the class
    members. Thus, the trial court’s grant of defendant’s motions for a new trial and for
    partial decertification of the class were a proper exercise of its discretion.
    1. A class action does not dispense with traditional burdens of proof in the name of
    efficiency; to the contrary, it leaves the parties’ legal rights and duties intact and the
    rules of decision unchanged. Before admitting aggregate proof of damages in a clas s
    action, a court must undertake a careful inquiry to ensure that the proposed evidence
    2
    does not deprive the defendant of a meaningful opportunity to contest the plaintiff’s
    claims. In Muise v. GPU, Inc., 
    371 N.J. Super. 13
     (App. Div. 2004), the Appellate
    Division undertook precisely such an inquiry and set forth principles regarding
    aggregate proofs of damages, which the Court now adopts. (pp. 25-30)
    2. To decide whether to permit classwide proof of damages, a court must carefully
    consider (1) the underlying cause of action for which the class seeks recovery; (2)
    the measure of damages that the law allows if there is a finding of liability for that
    claim; and (3) the methodology by which the plaintiff seeks to prove damages on an
    aggregate basis. If the plaintiff cannot establish a basis for a presumption that all
    members of the class have sustained damage, aggregate proof of damages raises the
    specter that an individual with no viable claim will recover a windfall. In such
    settings, the court should require individualized proof of damage. Even if the
    plaintiff can show that all class members have sustained damage, moreover,
    aggregate proof of damages must be based on a reliable mathematical formula in
    order to be admissible. (pp. 30-31)
    3. The Court rejects any attempt to redefine the break-repair claim as an alternative
    measure of the diminution-in-value claim that does not require individualized proof.
    The Court reviews the actual claim that plaintiff presented and the court submitted
    to the jury -- a claim for the class members’ out-of-pocket expenditures for brake
    repairs, presented through the testimony of her expert. The trial court properly
    recognized that plaintiff could pursue damages based on class members’ out-of-
    pocket damages for costs of repair as a remedy for breach of warranty, distinct from
    her diminution in value claim. The Court therefore applies the principles set forth in
    Muise and other case law to the out-of-pocket repair cost claim that plaintiff
    presented at trial. (pp. 31-34)
    4. Plaintiff presented no basis for a presumption -- much less for a conclusion -- that
    all members of the class suffered damages for out-of-pocket brake repairs
    necessitated by the Kia Sephia’s brake defect. The uncertainty about class
    members’ damages claims derived from the expansive definition of plaintiff’s class,
    which included an undetermined number of members who stood to gain a windfall
    by virtue of the jury’s award of $750 per class member for brake repairs. Even if
    plaintiff could demonstrate that all members of the class sustained an out-of-pocket
    loss, plaintiff’s expert had no basis to develop a reliable mathematical formula for
    estimating the average out-of-pocket costs incurred by members of that class, and he
    did not present such a formula. This case is not a setting in which class members’
    claims for damages could fairly be premised on aggregate proofs. The trial court
    properly granted defendant’s motion for a new trial limited to that aspect of
    plaintiff’s damages claim. (pp. 34-39)
    3
    5. The trial court also properly reassessed the question of predominance under Rule
    4:32-1(b)(3) in holding that for purposes of the new trial on class members’ out-of-
    pocket costs, common questions no longer predominated over individualized
    inquiries as to the class members’ damages. The trial court conducted a careful
    assessment of the common and individual questions. It concluded that the class’s
    damage claims could not be resolved in a common proceeding. The court found no
    single factual pattern on the limited question of damages that remained. The trial
    court’s determination was firmly grounded in the trial evidence, which demonstrated
    the disparate experiences of individual class members. The trial court’s
    decertification order was a correct application of the predominance standard and a
    proper exercise of the court’s discretion in the management of this case. (pp. 39-43)
    6. Finally, the Court reviews the adoption of the Report and Recommendations of
    the Special Master by the judge assigned to handle post-trial proceedings. The
    Court notes that an individualized claims process on damages may be an equitable
    and practical method of resolving damages claims. The trial judge and post-trial
    judge acted within their discretion when they authorized such a procedure in this
    action. Moreover, the Special Master conducted the claims process with precision
    and care. The Special Master reviewed each claim, made individualized
    determinations, and thoughtfully considered and resolved the many objections made
    by both parties. The Court finds that the claims process in this case was fair and
    exemplary. The Special Master’s Report and Recommendations were supported by
    substantial credible evidence in the record, and the court properly adopted the
    Special Master’s findings. (pp. 43-47)
    REVERSED. The final judgment entered by the trial court is REINSTATED.
    CHIEF JUSTICE RABNER and JUSTICES LaVECCHIA, ALBIN, FERNANDEZ-
    VINA, and TIMPONE join in JUSTICE PATTERSON’s opinion. JUSTICE
    SOLOMON did not participate.
    4
    SUPREME COURT OF NEW JERSEY
    A-24 September Term 2018
    081691
    Regina Little, on behalf of
    herself and all others
    similarly situated,
    Plaintiff-Respondent,
    v.
    Kia Motors America, Inc.,
    Defendant-Appellant.
    On certification to the Superior Court,
    Appellate Division, whose opinion is reported at
    
    455 N.J. Super. 411
     (App. Div. 2018).
    Argued                      Decided
    October 8, 2019               June 25, 2020
    Roberto A. Rivera-Soto argued the cause for appellant
    (Ballard Spahr and Patterson Belknap Webb & Tyler,
    attorneys; Roberto A. Rivera-Soto, Neal D. Walters,
    Casey G. Watkins, and Peter C. Harvey, of counsel and
    on the briefs).
    Michael D. Donovan (Donovan Litigation Group) of the
    Pennsylvania bar, admitted pro hac vice, argued the cause
    for respondent (Donovan Litigation Group; Schnader
    Harrison Segal & Lewis; Feldman, Shepherd,
    Wohlgelertner, Tanner, Weinstock & Dodig; and Francis
    & Mailman, attorneys; Lisa J. Rodriguez, James A.
    Francis, Michael D. Donovan, and Alan M. Feldman
    (Feldman, Shepherd, Wohlgelertner, Tanner, Weinstock
    & Dodig) of the Pennsylvania bar, admitted pro hac vice,
    on the briefs).
    1
    JUSTICE PATTERSON delivered the opinion of the Court.
    In this class action, plaintiff Regina Little asserted breach of warranty
    and other claims on her own behalf and on behalf of other New Jersey owners
    and lessees of 1997, 1998, 1999, and 2000 Kia Sephia vehicles distributed by
    defendant Kia Motors America, Inc. Plaintiff alleged that Kia Sephias in those
    model years had a defective brake system.
    At trial, plaintiff presented two distinct claims for damages. First, she
    alleged that the class members suffered damages because the defective brakes
    hastened each Kia Sephia’s depreciation, diminishing the vehicle’s value, and
    that all class members had thus overpaid for their vehicles. Second, plaintiff
    asserted that the class members incurred out-of-pocket costs due to the brake
    defect because the cars required more frequent brake repairs than they would
    have required absent the defect. Plaintiff premised that second damages claim
    not on individualized proof of class members’ repair costs, but on an expert’s
    estimate of the amount of money an average Kia Sephia owner would pay for
    brake repairs over the vehicle’s life as a result of the defect alleged.
    The jury agreed with plaintiff that the Kia Sephia had a brake defect,
    found that defendant had breached express and implied warranties, and
    determined that the class had sustained damages because of the brake defect.
    2
    The jury decided that the class members suffered no damages due to their
    vehicles’ diminution in value. It nevertheless awarded damages in the amount
    of $750 per class member based on plaintiff’s claim for the cost of repairs.
    After the jury verdict, the trial court determined that it should have
    required individualized proof of damages for the class members’ brake repairs.
    The court left the jury’s liability verdict undisturbed. However, it granted
    defendant’s motion for a new trial pursuant to Rule 4:49-1, as to the amount of
    out-of-pocket damages incurred by class members. The trial court decertified
    the class as to that limited issue and ordered individualized assessments of out-
    of-pocket expenses incurred by the class members. A court-appointed Special
    Master conducted a claims process, evaluated the class members’ individual
    claims and recommended to the trial court that it award damages in the amount
    of $46,197.03 for the cost of repairs. The trial court accepted that
    recommendation, and final judgment was entered in plaintiff’s favor in that
    amount plus attorneys’ fees and costs.
    The parties cross-appealed. The Appellate Division reversed the trial
    court’s post-trial determinations, reinstated the jury’s award for out-of-pocket
    repair costs based on plaintiff’s aggregate proofs, and remanded for an award
    of attorneys’ fees. Little v. Kia Motors Am., Inc., 
    455 N.J. Super. 411
    , 416-36
    (App. Div. 2018). We granted defendant’s petition for certification.
    3
    Although aggregate proof of damages can be appropriate in some
    settings, we consider such proof improper as presented in this case. We
    concur with the trial court that it erred when it allowed plaintiff to prove class-
    members’ out-of-pocket costs for brake repairs based on an estimate
    untethered to the experience of plaintiff’s class. We hold that the trial court
    properly ordered individualized proof of damages based on the actual costs
    incurred by the class members. We view the trial court’s grant of defendant’s
    motions for a new trial and for partial decertification of the class as a proper
    exercise of its discretion. The claims proceeding that followed, carefully
    conducted by a Special Master whose Report and Recommendations were
    adopted by the trial court, was equitable to all parties.
    Accordingly, we reverse the Appellate Division’s judgment and reinstate
    the final judgment entered by the trial court.
    I.
    We derive our summary of the facts from the trial record.
    Defendant began selling the Kia Sephia in New Jersey in 1997. Between
    1997 and 2000, Kia sold or leased approximately 8400 Kia Sephias in New
    Jersey.
    Relying in part on defendant’s internal documents, plaintiff alleged that,
    because of design and manufacturing flaws, the Kia Sephia’s front brakes
    4
    prematurely wore out, and defendant’s efforts to redesign the brakes failed to
    correct the defect. 1 Defendant conceded that there was an increased rate of
    brake wear in model year 1997-2000 Sephias but maintained that it had
    resolved the problem through successive improvements in its design.
    Defendant’s purchase contract for 1997, 1998, and 2000 model year
    Sephias included the following warranty language:
    What is Covered
    Kia Motors America, Inc. warrants that your new Kia
    Vehicle is free from defects in material or
    workmanship, subject to the following terms and
    conditions. An Authorized Kia Dealer will make
    necessary repairs, using new or remanufactured parts,
    to correct any problem covered by this limited warranty
    without charge to you.
    *      *     *
    Basic Warranty Coverage
    Except as limited or excluded below, all components of
    your new Kia Vehicle are covered 36 months or 36,000
    miles, whichever comes first, from the earlier date of
    either retail delivery or first use of the Kia Vehicle.
    1
    Although plaintiff alleged in her complaint that the brake defect in the Kia
    Sephia affected the distance required to stop the car and caused a safety
    hazard, the parties stipulated at trial that there was no such hazard and that the
    Sephia’s brakes in the relevant model years satisfied Federal Motor Vehicle
    Safety Standards for stopping distance. See generally 
    49 C.F.R. § 571.105
    .
    5
    The contract provided that the warranty excluded “[n]ormal
    [d]eterioration,” defined to include “[n]ormal wear, tear or deterioration such
    as discoloration, fading, deformation, etc.” Although defendant took the
    position that brake pads were among the “wear items” excluded from its
    warranty, some of its dealers in New Jersey and other states repaired
    customers’ brakes at no charge, and defendant covered the dealers’ costs as
    warranty repairs. The parties stipulated that there were 8404 repairs pursuant
    to warranty on the front brake components to Kia Sephias owned by New
    Jersey residents during the relevant period, and that those repairs were
    conducted on cars bearing 4875 different vehicle identification numbers.
    According to defendant, it conducted those warranty repairs whether or not the
    car was still within the three-year, 36,000-mile warranty, and paid a total of
    $1.4 million for those repairs.
    In January 2002, defendant offered customers a “field fix” in which a
    redesigned rotor would be installed in the brake system of the customer’s car.
    The parties stipulated that 242 warranty repairs involving the “field fix” were
    conducted in New Jersey. In addition, defendant offered the owners of model
    year 1997-2000 Kia Sephias that had previously required two or more brake
    repairs a coupon for a free brake repair using the “field fix” redesign. In New
    6
    Jersey, 650 Kia Sephia owners received a coupon for a repair pursuant to that
    program.
    Beginning with model year 2001, defendant included a redesigned brake
    system in Kia Sephias sold in the United States.
    II.
    A.
    Plaintiff filed this action against defendant in the Law Division on June
    26, 2001. She alleged that on March 1, 1999, she purchased a 1999 Kia Sephia
    from a New Jersey dealer for approximately $13,000. Plaintiff asserted that
    the brakes in her vehicle constantly malfunctioned, requiring her to return her
    car to Kia dealers for repairs on at least five occasions, and that defendant
    failed to correct the problem. She asserted individual and class action claims
    for violation of sections 17200 and 17500 of the California Business and
    Professions Code; 2 violation of the New Jersey Consumer Fraud Act (CFA),
    N.J.S.A. 56:8-1 to -224; breach of an express warranty and the implied
    warranty of merchantability; and violation of the federal Magnuson-Moss
    Warranty--Federal Trade Commission Improvement Act, 
    15 U.S.C. §§ 2301
     to
    2312 (Magnuson-Moss Act).
    2
    Plaintiff’s claims based on the California Business and Professions Code were
    dismissed prior to trial.
    7
    Pursuant to Rule 4:32, plaintiff requested certification of a class “of all
    persons who purchased and/or leased Kia Sephia automobiles within six years
    preceding the filing of [the] action.” On her own behalf and on behalf of the
    putative class, she sought compensatory damages, a declaratory judgment,
    injunctive relief, attorneys’ fees, and other remedies.
    After granting partial summary judgment dismissing plaintiff’s claims to
    the extent they related to or purported to state a claim for a national class, the
    judge handling pretrial matters in this case considered plaintiff’s motion to
    certify a class of New Jersey owners and lessees of Kia Sephias. The judge
    held that plaintiff had satisfied the requirements of Rule 4:32, granted
    plaintiff’s motion for class certification, and appointed counsel for the class.3
    Pursuant to an order dated February 9, 2004 and as required by Rule 4:32-2(b),
    plaintiff’s counsel provided notice to the class in a form approved by the court.
    As amended by a different judge’s order dated November 17, 2006, the
    class represented by plaintiff was defined as follows:
    3
    With respect to the four requirements of Rule 4:32-1(a), the judge found (1)
    that the class was so numerous that joinder of all members was impracticable;
    (2) that there were questions of law or fact common to the class; (3) that
    plaintiff’s claims were typical of the claims of the class; and (4) that plaintiff
    would fairly and adequately protect the interests of the class. With respect to
    the requirements of Rule 4:32-1(b), the judge found that common questions of
    law and fact “predominate[d] over any questions affecting only individual
    members, and that a class action [was] superior to other available methods for
    the fair and efficient adjudication of the controversy.” R. 4:32-1(b)(3).
    8
    All residents of the State of New Jersey who purchased
    or leased a model year 1995-2000 Kia Sephia within the
    six year period preceding the filing of the Complaint,
    excluding (i) all persons who are currently engaged in
    or have been engaged in litigation and/or arbitration
    with Defendant concerning defects in the Sephia model
    automobiles; (ii) all persons who have executed valid
    releases in connection with claims related to defects in
    the Sephia model automobiles; (iii) all Judges, judicial
    officers and members of their immediate families; and
    (iv) all persons who have or may have claims for
    personal injuries arising out of or in any way related to
    alleged defects in the Sephia model automobiles, which
    claims arose prior to entry of judgment and distribution
    of the relief sought in the Complaint.
    B.
    1.
    The matter was tried before a jury in a four-week trial.
    Plaintiff asserted two distinct theories of damages, each of which, she
    contended, constituted a basis for a jury’s award of damages for breach of
    warranty and a finding of ascertainable loss under the CFA, without
    individualized proof of each class member’s losses. She presented her first
    theory of classwide damages through the testimony of John Matthews, Ph.D.,
    whom the trial court qualified as an expert in quantitative analysis, statistics,
    and valuation losses. Plaintiff presented her second theory of classwide
    9
    damages through the testimony of Raymond Scott King, whom the court
    qualified as an automobile engineer with an expertise in braking systems. 4
    Matthews compared the resale value of a Kia Sephia in the relevant
    model years to the resale value of several competing vehicles that he selected
    and assigned to a “cohort group.” Choosing a different time period for his
    calculation for each of the four model years so as to maximize the rate of the
    Sephia’s depreciation, Matthews opined that at the end of each model year’s
    depreciation period, the Sephia was worth only forty percent of its original
    value, and that it depreciated faster than all but one of the cars in his “cohort
    group.”
    On that basis, Matthews testified that each purchaser of a Kia Sephia --
    even a purchaser such as plaintiff who did not sell or trade in her vehicle --
    suffered a loss due to his or her vehicle’s depreciation as compared with the
    “cohort group” of vehicles.5 Matthews also presented a second figure,
    4
    After conducting hearings pursuant to N.J.R.E. 104 in accordan ce with the
    standard of N.J.R.E. 702 and Kemp v. State, 
    174 N.J. 412
    , 424 (2002), the trial
    court rejected defendant’s challenges to the admission of both experts’
    opinions.
    5
    According to Matthews, a new 1997 Kia Sephia was subject to excess
    depreciation in the amount of $2191, a new 1998 Kia Sephia was subject to
    excess depreciation in the amount of $1125, a new 1999 Kia Sephia was
    subject to excess depreciation in the amount of $904, and a new 2000 Kia
    Sephia was subject to excess depreciation in the amount of $640.
    10
    substantially higher than his depreciation figure, for each of the four model
    years, and identified that amount as the average Kia Sephia purchaser’s
    “overpayment” for his or her car. Matthews testified that in the absence of an
    alternative explanation, the diminution of the Kia Sephias’ value was caused
    by the brake defect.
    Although most of King’s expert testimony focused on plaintiff’s
    allegation that the Kia Sephia’s brakes were defective, he also testified in
    support of plaintiff’s damages claim.
    King estimated “the likely out-of-pocket expenses incurred by members
    of the class” as a result of the brake defect. He premised his estimate on three
    assumptions. First, he opined that it is reasonable for a car owner to expect his
    or her vehicle to last 100,000 miles. Second, he stated a “normal” interval for
    brake replacements is every 20,000 miles. Third, King estimated that the
    average Kia Sephia required a brake replacement every 10,000 miles, twice the
    “normal” frequency of every 20,000 miles. He based that estimate not on any
    analysis of brake-repair data, but on several anecdotal reports of individual
    brake repairs that identified the vehicle’s mileage at the time of the repair to be
    relatively close to that figure.
    On that basis, King calculated that each class member should expect to
    pay for five “normal” brake replacements -- repairs not attributable to any
    11
    defect in his or her car -- during the expected 100,000-mile duration of his or
    her ownership of that car. King concluded that during the ownership of the
    average Kia Sephia, the vehicle accumulated the projected 100,000 miles and
    the brakes would have to be repaired on ten occasions. According to King,
    five of those brake repairs would be “normal” repairs that would be expected
    in a vehicle without defects, and five would be “abnormal” brake repairs
    attributable to the brake defect.
    Based on telephone inquiries to five or six New Jersey Kia dealers, King
    estimated the average cost of a brake repair in New Jersey to be $250.
    Multiplying that amount by the estimated five “abnormal” brake repairs, he
    concluded that an average class member’s out-of-pocket expenses for brake
    repairs would be $1250.
    King then extrapolated that calculation to the class as a whole. He
    estimated that there were 42,000 “abnormal” brake repairs performed on the
    Kia Sephias in the relevant model years. Deducting the 8404 brake repairs for
    which defendant paid under its warranty program from that estimate, King
    opined that the defect in the Sephia’s brakes required class members to pay for
    a total of approximately 34,000 brake repairs. He contended that the class’s
    aggregate out-of-pocket expenses could be calculated by multiplying 34,000
    by $250.
    12
    On cross-examination, King conceded that if a given class member drove
    a Kia Sephia 25,000 miles with no need for a brake repair, or incurred no out -
    of-pocket costs because defendant paid for any necessary brake repairs under
    warranty, his opinion would not apply to that class member. King
    acknowledged that plaintiff did not retain her car until it reached 100,000
    miles and that he was unaware of any brake repairs to plaintiff’s Kia Sephia
    after it was driven 45,000 miles. King conceded that his estimates relied
    exclusively on defendant’s warranty data and that he did not have any data on
    what Kia Sephia owners actually paid for non-warranty repairs.6
    2.
    Before the trial judge, the parties disputed whether the evidence
    presented by Matthews and King was sufficient to establish classwide damages
    arising from defendant’s alleged breach of warranty. They also contested
    whether Matthews and King had proven each class member’s ascertainable
    6
    In addition to presenting the expert testimony of Matthews and King,
    plaintiff presented her own testimony regarding her experience with her Kia
    Sephia, as well as the testimony of Kia employees regarding the brake defect
    and Kia’s marketing practices. Kia presented the testimony of its Vice
    President of Parts and Service regarding warranty repairs; three Kia Sephia
    owners who had opted out of the class because they were satisfied with the
    performance of their vehicles; an expert witness on “engineering, design and
    warranty data,” who addressed whether the brakes were defective; and an
    expert on “statistics, expert analysis, loss causation, and damage calculati on”
    to counter the expert opinions of Matthews and King on classwide damages.
    13
    loss, an element of plaintiff’s CFA claim under Thiedemann v. Mercedes-Benz
    USA, LLC, 
    183 N.J. 234
    , 247-48 (2005).
    Arguing that neither Matthews nor King had established breach of
    warranty damages or ascertainable loss for any class member, and citing due
    process considerations, defendant moved for an involuntary dismissal pursuant
    to Rule 4:37-2 at the close of plaintiff’s proofs and again at the close of the
    evidence. The trial court denied both motions.
    Reiterating purported deficiencies in plaintiff’s aggregate proofs,
    defendant moved to decertify the class or, in the alternative, to recertify the
    class on the question of liability only, leaving the question of damages for
    individualized determinations. The trial court denied the motion.
    In the jury charge conference, defendant requested that the court limit
    the class to one theory of damages for breach of warranty. The trial court
    declined that request. It ruled that a class member could sustain damages for
    both the diminution of his or her vehicle’s value and out-of-pocket costs for
    brake repairs, and that both damages theories should be submitted to the jury .
    At the conclusion of the trial, the trial judge instructed the jury on
    damages for breach of warranty, acknowledging the class’s two theories of
    classwide damages:
    In a breach of warranty case, the function of damages
    is simply to make an injured party whole. In other
    14
    words, the innocent party must be given the benefit of
    the bargain and placed in as good a position as they
    would have been in as if the contract had been
    performed.
    It is for you to decide the appropriate amount of
    damages in this case.
    In a breach of warranty case, one measure of damages
    is the difference at the time of delivery between the
    value of the vehicle, as accepted and the value of the
    vehicle as it would have been if it was -- as it was
    warranted.
    In other words, the measure of damages is the
    difference in value between the vehicle as promised
    minus the value of the vehicle as delivered in a
    defective condition. Damages may also be measured
    by the increased cost of maintenance and repair to
    purchasers and lessees of the Sephia as a result of the
    defects.
    The two damages theories were addressed in separate questions on the
    verdict form, which the trial court identified as a form used by plaintiff’s
    counsel in other litigation and suggested by plaintiff.
    3.
    The jury returned a verdict in favor of plaintiff with respect to most of
    her claims. It determined that defendant had breached its express and implied
    warranties to the class members with respect to the vehicles purchased by the
    15
    class and had violated the Magnuson-Moss Act. It found, however, that
    defendant had not violated the CFA.
    The jury determined that the class had sustained damages. Asked to
    state the amount of damages sustained by each class member “[f]or the
    difference in value, if any, of the Sephia as warranted compared to the Sephia
    as delivered,” the jury responded “$0.” Asked to state the amount of damages
    sustained by each class member “[f]or repair expenses reasonably incurred as a
    result of the defendant’s breach of warranty,” the jury responded “$750.”
    C.
    In post-verdict proceedings, defendant moved for judgment
    notwithstanding the verdict pursuant to Rule 4:40-2, for a new trial pursuant to
    Rule 4:49-1, and for an order decertifying the class on the issue of damages
    pursuant to Rule 4:32-2.
    With respect to breach of warranty damages, defendant argued that when
    the class was certified several years earlier, the court assumed that plaintiff’s
    theory of classwide damages would be the diminution-in-value theory
    presented by Matthews. Defendant asserted that in light of the jury’s rejection
    of that theory, and its award of damages solely based on class members’ out-
    of-pocket expenses for brake repairs, damages could not be fairly calculated
    absent individualized proofs.
    16
    Noting defendant’s concession that repair costs required by a defect can
    be a proper measure of damages for breach of warranty, plaintiff responded
    that the jury verdict on repair costs was properly premised on King’s estimate
    of the average repair cost that a class member would be expected to incur.
    Plaintiff did not challenge the jury’s verdict rejecting her diminution-of-
    value damages claim in a motion for judgment notwithstanding the verdict, a
    motion for a new trial, or any other post-trial application.
    The trial court denied defendant’s motion for judgment notwithstanding
    the verdict in its entirety and its motion for a new trial as to liability, finding
    “ample support for the jury’s verdict in all respects but damages.” It granted
    in part, however, defendant’s motion for a new trial, limited to the issue of
    damages. The court concluded that it had erred when it submitted the question
    of out-of-pocket repair costs to the jury and instructed the jury to consider
    plaintiff’s second damages theory based on classwide proofs. It commented
    that “[t]he damages suffered by each class member are dependent on numerous
    variables, such as brake life, frequency of repair, driving habits and length of
    time the car was owned.” The trial court limited the new trial to “the monetary
    amount of damages incurred, if any,” to be “handled on a claim-form basis.”
    Noting that in the initial class certification proceedings, plaintiff’s
    counsel had recognized that “the fact of damages may be different for each
    17
    individual,” the trial court held that “it cannot be shown that all members of
    the class suffered monetary damages on a class-wide model.” The court
    reasoned that if it were to maintain class certification for purposes of repair
    damages, it would “provide a windfall for those owners who did not actually
    pay for brake repairs more often than every 20,000 miles.” The trial court
    therefore granted defendant’s motion to decertify the class “as to the quantum
    of damages each individual owner suffered,” with the class members left to
    their individual proofs.
    D.
    Following the transfer of this matter from the trial judge to another
    judge, plaintiff proposed a class notice plan and a claims-form process. At the
    court’s direction, the notice to the class requested details about each class
    member’s vehicle, the vehicle’s repair history, any warranty coverage of the
    repair costs, and any accidents involving the vehicle during the warranty
    period. The notice indicated that the claimant should provide documentation
    of his or her claims, but also directed each class member to submit his or her
    claim even if he or she could not provide documentation. The court appointed
    a third-party administrator to process the claims. Also at the court’s direction,
    defendant set up a website for the use of class members submitting claims.
    18
    In response to the notice, members of the class returned between 1110
    and 1120 claim forms. Plaintiff’s counsel took the position that they could not
    represent the individual claimants because their interests conflicted with those
    of the class as a whole. The judge certified a new class, consisting of the
    individual Kia Sephia owners and lessees who had submitted claim forms, and
    plaintiff’s counsel represented that class.
    The judge then appointed a Special Master to determine “which [claim]
    forms state valid claims to be paid.” Shortly after his appointment, the Special
    Master advised the court and counsel that he viewed his role to extend beyond
    the recommended adjudication of the class members’ individual claims. He
    stated that “the jury verdict finding no diminution in value cannot logically
    survive,” that he considered himself “empowered to revisit this theory,” and
    that the claimants should be permitted to pursue damages for breach of
    warranty other than those based on out-of-pocket repair costs.
    Over defendant’s objection, the judge adopted the Special Master’s
    conclusions, thus overturning the jury verdict rejecting diminution-of-value
    damages -- which had not been challenged by plaintiff -- and nullifying the
    trial court’s post-judgment determinations.
    The Appellate Division granted defendant’s motion for leave to file an
    interlocutory appeal and reversed the judge’s order, noting that the court
    19
    handling the post-trial proceedings had not reviewed the trial transcript before
    it overturned the jury verdict and overruled the trial judge’s rulings; that the
    court had adjudicated issues not before it; and that the trial judge’s post-trial
    rulings should have been viewed as the law of the case. Little v. Kia Motors
    Am., Inc., 
    425 N.J. Super. 82
    , 89-93 (App. Div. 2012). The Appellate
    Division remanded the matter for further proceedings consistent with its
    opinion. 
    Id. at 93
    .
    On remand, the judge assigned to handle the post-trial proceedings
    appointed a new Special Master. Analyzing each claim form that had
    previously been submitted as well as other documents pertinent to some of the
    claims, the second Special Master recommended that the court find that 150
    claimants had proven that they incurred out-of-pocket expenses for
    compensable brake repairs, and that it award damages in the amount of
    $46,197.03. The judge adopted the second Special Master’s Report and
    Recommendation.
    The case was then transferred to another judge. Plaintiff’s counsel
    requested $6,055,916 in attorneys’ fees and $481,850 in costs, prejudgment
    interest, and post-judgment interest. On September 10, 2015, the court entered
    final judgment against defendant in the amount of $46,197.03 in damages
    payable to the 150 claimants who had proven out-of-pocket costs for
    20
    compensable brake repairs. The judgment also included $200,000 in legal
    fees, $19,112 in prejudgment interest, $481,850 in costs, and an incentive
    award of $5000 to plaintiff, who had demonstrated no out-of-pocket expenses
    for compensable brake repairs.
    E.
    Plaintiff appealed the final judgment. She challenged several
    determinations, including the trial court’s grant of a new trial on the issue of
    damages and the individualized determinations that followed, and sought
    reinstatement of the jury’s damages verdict. Defendant cross-appealed,
    asserting, among other arguments, that the trial court should have decertified
    the class for all purposes, granted its motion for a judgment notwithstanding
    the verdict, and excluded King’s expert testimony.
    The Appellate Division reversed the trial court’s judgment. Little, 455
    N.J. Super. at 426-36.7 The Appellate Division perceived error in the trial
    court’s grant of a new trial on only the damages theory based on out-of-pocket
    expenses for brake repairs and held that, notwithstanding the jury’s rejection
    7
    The Appellate Division incorrectly characterized the trial court’s post -
    verdict ruling to include the grant of a judgment notwithstanding the verdict on
    the question of damages for brake repairs. Id. at 417. As the trial court’s
    written decision makes clear, it did not grant a judgment notwithstanding the
    verdict; instead, the court granted in part defendant’s motion for a new trial,
    decertified the class for damages, and required “claims proceedings as to
    damages.”
    21
    of plaintiff’s diminution-in-value theory, the trial court should have ordered a
    new trial on both theories of damages. See id. at 426. The court viewed
    plaintiff’s damages theories as not “fairly separable from each another” and
    expressed concern that the trial court did not tell the jury “of any ramification s
    if only repair damages were awarded.” Ibid.
    The Appellate Division disagreed with the trial court’s conclusion that
    cost-of-repair damages could not be assessed classwide. Id. at 428-36. It
    viewed both of plaintiff’s experts to present reasonable theories of damages
    and held that a claimant’s “small windfall . . . should not defeat recovery.” Id.
    at 429. The Appellate Division distinguished this case from its decision in
    Muise v. GPU, Inc., 
    371 N.J. Super. 13
     (App. Div. 2004), on the ground that
    King’s calculations more closely tracked actual data than the mathematical
    model rejected in Muise, given King’s reliance on defendant’s brake-repair
    data, the testimony of defendant’s executives, and defendant’s internal
    documents. Id. at 431-32. The court held that a class may prove classwide
    damages “based on a reliable mathematical formula.” Id. at 432.
    The Appellate Division also relied on the Pennsylvania Supreme Court’s
    decision in Samuel-Bassett v. Kia Motors America, Inc., 
    34 A.3d 1
    , 12 (Pa.
    2011), in which plaintiff’s counsel in this matter represented a Pennsylvania
    class of Kia Sephia purchasers and lessees. 
    Ibid.
     The Appellate Division
    22
    viewed the Pennsylvania Supreme Court’s majority opinion that approved
    King’s estimate of a class member’s out-of-pocket damages in Samuel-Bassett
    to be a proper aggregate proof of classwide damages. 
    Id. at 432-34
     (discussing
    Samuel-Bassett, 34 A.3d at 11-13, 35-37, 40).
    On those grounds, the Appellate Division reversed the trial court’s
    determination, reinstated the jury’s award of $750 per class member based on
    aggregate proofs, and remanded for an award of attorneys’ fees to plaintiff. Id.
    at 439. It rejected the arguments presented in defendant’s cross-appeal. Id. at
    436-39.
    We granted defendant’s petition for certification, “limited to the issue of
    damages.” 
    236 N.J. 113
     (2018). We invited supplemental briefs and indicated
    that the parties should address “alternative methods by which damages may be
    fairly and practicably determined in this action, taking into consideration the
    number of claimants and the difficulties that some claimants may encounter in
    documenting their expenditures to repair the brakes of the 1997-2000 model
    year Kia Sephia vehicles” at issue in this case. 
    Ibid.
    III.
    A.
    Defendant argues that, in the wake of the jury’s rejection of plaintiff’s
    diminution-in-value theory of aggregate damages, the trial court properly
    23
    recognized that individualized proof of out-of-pocket expenditures for brake
    repairs represented the only equitable method to assess class members’
    damages. It asserts that plaintiff’s aggregate damages evidence, presented by
    her expert, King, violated defendant’s due process rights and was improperly
    approved by the Appellate Division. Defendant contends that plaintiff’s
    characterization of her out-of-pocket damages theory for purposes of appeal
    contravenes that theory as it was presented at trial. It argues that the claims-
    form proceeding overseen by the second Special Master protected the class
    members’ recovery of out-of-pocket damages and also preserved defendant’s
    due process right to defend this action.
    B.
    Plaintiff asserts that every member of the class is entitled to a remedy
    for the brake defect in all model year 1997-2000 Kia Sephias, a defect
    recognized by the jury in its verdict. Plaintiff contends that an award of
    damages for a claimant’s “out of pocket payment” is inadequate to compensate
    that claimant’s loss because no single repair could cure the defect in the brake
    system. She argues instead that the jury’s award of $750 per claimant,
    supported by King’s “reliable mathematical formula,” should not be deemed to
    represent only the jury’s calculation of repair costs. Plaintiff asserts that the
    jury award also represented the amount necessary on the date the car was
    24
    delivered to “cure the unfixable defect” in each Kia Sephia. According to
    plaintiff, the Appellate Division therefore properly declined to limit class
    members’ damages to the actual repair costs that they incurred. Plaintiff
    contends that the claims process overseen by the second Special Master
    improperly premised an award on the “actual damages incurred,” when it
    should have recognized that the defect could not be corrected by a brake
    repair. Plaintiff asserts that the class members were entitled to recover more
    than what they paid for such repairs.
    IV.
    A.
    We first review the trial court’s grant of defendant’s motion for a new
    trial pursuant to Rule 4:49-1 as to whether damages for brake repairs could be
    calculated on a classwide basis.
    In that inquiry, we “give considerable deference to a trial court’s
    decision to order a new trial, as the trial court has gained a ‘feel of the case’
    through the long days of the trial.” Lanzet v. Greenberg, 
    126 N.J. 168
    , 175
    (1991); accord Conklin v. Hannoch Weisman, 
    145 N.J. 395
    , 407 (1996).
    Applying the same standard that governs the trial court, we determine
    “whether there was a miscarriage of justice under the law.” Hayes v.
    Delamotte, 
    231 N.J. 373
    , 386 (2018) (quoting Risko v. Thompson Muller
    25
    Auto. Grp., Inc., 
    206 N.J. 506
    , 522 (2011)); accord R. 2:10-1 (“The trial
    court’s ruling on such a motion shall not be reversed unless it clearly appears
    that there was a miscarriage of justice under the law.”).
    B.
    When it granted a new trial on out-of-pocket repair damages, the trial
    court ruled that it had erred when it authorized proof of the class’s repair costs
    by means of an expert’s estimate without requiring an individualized inquiry.
    We thus consider the standard that guides a court’s determination whether to
    permit a class to prove its damages in aggregate form, or to require evidence
    specific to each class member. 8
    “A ‘class action is “an exception to the usual rule that litigation is
    conducted by and on behalf of the individual named parties only.”’” Dugan v.
    TGI Fridays, Inc., 
    231 N.J. 24
    , 46 (2017) (quoting Iliadis v. Wal-Mart Stores,
    Inc., 
    191 N.J. 88
    , 103 (2007)). It “furthers numerous practical purposes,
    including judicial economy, cost-effectiveness, convenience, consistent
    treatment of class members, protection of defendants from inconsistent
    obligations, and allocation of litigation costs among numerous, similarly
    8
    We do not concur with plaintiff that defendant waived its right to argue that
    the aggregate proofs at issue violated its due process rights. Defendant raised
    its due process argument before the trial court at pretrial hearings and at trial,
    as well as on appeal.
    26
    situated litigants.” 
    Ibid.
     (quoting Iliadis, 
    191 N.J. at 104
    ). The class action
    device “also helps to equalize adversaries, a purpose that is even more
    compelling when the proposed class consists of people with small claims.”
    Iliadis, 
    191 N.J. at 104
    .
    A class action, however, does not dispense with traditional burdens of
    proof in the name of efficiency; to the contrary, “it leaves the parties’ legal
    rights and duties intact and the rules of decision unchanged.” Shady Grove
    Orthopedic Assocs., P.A. v. Allstate Ins. Co., 
    559 U.S. 393
    , 408 (2010)
    (plurality opinion). Just as due process principles mandate that a court permit
    the plaintiff to prove her case subject to the court rules, the Rules of Evidence,
    and other relevant law, “[d]ue process requires that there be an opportunity to
    present every available defense” within the same constraints. Gonzalez v. Safe
    & Sound Sec. Corp., 
    185 N.J. 100
    , 114 (2005) (quoting N.Y., Susquehanna &
    W. R.R. Co. v. Vermeulen, 
    44 N.J. 491
    , 501 (1965)).
    Notwithstanding the unique burdens that a class action imposes on
    judicial resources, a court must recognize that the most expeditious method of
    presenting a claim or defense may not ensure a fair trial. Accordingly, before
    admitting aggregate proof of damages in a class action, a court must undertake
    a careful inquiry to ensure that the proposed evidence does not deprive the
    defendant of a meaningful opportunity to contest the plaintiff’s claims.
    27
    In its decision in Muise, the Appellate Division undertook precisely such
    an inquiry. Muise arose from the claims of a class consisting of electrical
    utility customers who experienced heat-related power outages. 
    371 N.J. Super. at 18
    . The class sought to recover damages against the electrical utility whose
    service was interrupted. 
    Ibid.
     Although the class initially asserted claims
    based on violations of the CFA, negligence, and several other common-law
    claims, only the negligence claim remained when the trial court considered the
    issue of aggregate proofs. 
    Id. at 18-20
    .
    As an alternative to proving the customer’s individual losses, the
    plaintiffs retained two experts to present classwide proof of their claims. 
    Id. at 23
    . The experts relied on surveys that they and others conducted in which
    electrical customers in California and Canada were asked to state what their
    expected costs would be if they experienced a power outage under certain
    hypothetical circumstances. 
    Id. at 24
    . In papers they had written on the use of
    surveys to prove damages, the experts had cautioned that respondents in such
    surveys had scant experience with service interruptions and that the resulting
    estimates would be influenced by socioeconomic, demographic, and
    geographic factors. 
    Ibid.
     Nonetheless, in the Muise case, the experts invoked
    those surveys to estimate $62 million in damages to the class. 
    Ibid.
    28
    In an opinion by Judge King, the Appellate Division affirmed the trial
    court’s decision rejecting the survey evidence. 
    Id. at 28-29, 46-52
    . The court
    adopted the reasoning of the trial judge, who “did not find that individualized
    proofs were always required,” but cautioned that a court should depart from
    that general rule only “where class-wide damages can be calculated by a
    reliable mathematical formula.” 
    Id. at 28
    . “Even then,” the court observed, “a
    statistical model estimating the total amount of damages should not be
    substituted for actual proof unless it can be presumed that all members of the
    class suffered damage.” 
    Id. at 28-29
    . The Appellate Division determined that
    although “it might be reasonable to presume that all class members, merely by
    losing power, suffered some damage,” the plaintiffs had failed to offer a
    reliable mathematical formula to quantify that damage. 
    Id. at 52
    .
    The Appellate Division’s holding in Muise is consistent with the
    approach taken by many federal courts under Federal Rule of Civil Procedure
    23, the federal analogue to Rule 4:32. See, e.g., Ridgeway v. Walmart Inc.,
    
    946 F.3d 1066
    , 1086-87 (9th Cir. 2020) (holding that although the amount of
    damages is invariably an individual question, class members may resort to
    representative or statistical evidence to prove their claims when “the evidence
    is reliable in proving or disproving the elements of the relevant cause of
    action” (quoting Tyson Foods, Inc. v. Bouaphakeo, 577 U.S. ___, ___, 136 S.
    29
    Ct. 1036, 1046 (2016)); Day v. Celadon Trucking Servs., Inc., 
    827 F.3d 817
    ,
    835 (8th Cir. 2016) (ruling that a class may use representative evidence to
    calculate damages so long as the evidence is reliable); Newton v. Merrill
    Lynch, Pierce, Fenner & Smith, Inc., 
    259 F.3d 154
    , 187-89 (3d Cir. 2001)
    (rejecting the plaintiff’s argument that he should be permitted to present a
    formula for classwide proofs, given that the plaintiff had not establish ed that
    all members of the class had suffered damages and had not presented a viable
    formula as a substitute for individualized proofs).
    We concur with the principles stated by the Appellate Division in Muise,
    which we now adopt. To decide whether to permit classwide proof of
    damages, a court must carefully consider (1) the underlying cause of action for
    which the class seeks recovery; (2) the measure of damages that the law allows
    if there is a finding of liability for that claim; and (3) the methodology by
    which the plaintiff seeks to prove damages on an aggregate basis. If the
    plaintiff cannot establish a basis for a presumption that all members of the
    class have sustained damage, aggregate proof of damages raises the specter
    that an individual with no viable claim will recover a windfall. In such
    settings, the court should require individualized proof of damage. Muise, 
    371 N.J. Super. at 47-48
    ; Newton, 259 F.3d at 187-89. Even if the plaintiff can
    show that all class members have sustained damage, moreover, aggregate
    30
    proof of damages must be based on a reliable mathematical formula in order to
    be admissible. Muise, 
    371 N.J. Super. at 47-48
    ; Ridgeway, 946 F.3d at 1086-
    87; Day, 827 F.3d at 835. We apply those principles in this case.
    C.
    1.
    We briefly address plaintiff’s characterization on appeal of the claim for
    out-of-pocket repair costs that she asserted at trial.
    As plaintiff presented her out-of-pocket brake-repair claim to the jury, it
    was premised on costs incurred by class members for brake repairs
    necessitated by the brake defect. That claim was entirely separate from the
    diminution-of-value damages that she also sought to recover. Indeed, plaintiff
    prevailed in an application before the trial court regarding the jury charge; the
    court charged the jury that plaintiff could recover for both the diminution in
    value of the class members’ Kia Sephias and the “increased cost of
    maintenance and repair” to purchasers and lessees “as a result of the defects.”
    When the case went to the jury, plaintiff had the opportunity to achieve a
    cumulative recovery on both theories.
    On appeal, however, plaintiff attempts to redefine the claim she made
    before the jury. She now describes that claim to be based not on the increased
    costs incurred by individual class members to maintain and repair the vehicles,
    31
    as the jury was charged, but on the amount that would be necessary to replace
    the defective vehicle with one that was defect-free. After the fact, plaintiff
    portrays her out-of-pocket brake-repair claim as an alternative measure of the
    diminution-in-value claim that the jury rejected. She argues that such a claim
    is common to all class members, that it requires no individualized proof, and
    that the Appellate Division properly viewed the two claims to be inseparable.
    Plaintiff’s effort to recharacterize her damages claim, however, is belied by the
    record of King’s testimony, the position she took in motion practice before the
    trial court and at the charge conference, and the jury charge that she persuaded
    the court to give.
    Accordingly, we review the actual claim that plaintiff presented and the
    court submitted to the jury -- a claim for the class members’ out-of-pocket
    expenditures for brake repairs, presented through the testimony of her expert.
    2.
    As the trial court recognized, costs incurred by a given class member for
    repairs and maintenance necessitated by the defect in the Kia Sephia was an
    appropriate measure of damages for the breach of warranty claims asserted in
    this case pursuant to N.J.S.A. 12A:2-313, N.J.S.A. 12A:2-314, and N.J.S.A.
    12A:2-315.
    32
    Under the Uniform Commercial Code (UCC), a buyer who has accepted
    goods and has given notification of breach pursuant to N.J.S.A. 12A:2-607(3)
    “may recover as damages for any non-conformity of tender the loss resulting
    in the ordinary course of events from the seller’s breach as determined in an y
    manner which is reasonable.” N.J.S.A. 12A:2-714(1). The UCC recognizes
    “the difference at the time and place of acceptance between the value of the
    goods accepted and the value they would have had if they had been as
    warranted” as the ordinary measure of damages, “unless special circumstances
    show proximate damages of a different amount.” N.J.S.A. 12A:2-714(2).
    In appropriate settings, however, the plaintiff’s repair costs can also
    provide a reasonable measure of damages. See McDonald v. Mianecki, 
    79 N.J. 275
    , 282 n.1 (1979) (noting that although “diminution in value is a standard
    measure of damages in breach of warranty cases,” in some circumstances “it
    may be appropriate to utilize cost of repairs as the standard”); 525 Main St.
    Corp. v. Eagle Roofing Co., 
    34 N.J. 251
    , 254-55 (1961) (holding that when
    diminution of value damages are not easily calculated, “the cost of repairs, or
    the cost of replacement if replacement is necessary to obtain the promised
    performance, is the appropriate approach without reference to the [product’s]
    value”); Perth Amboy Iron Works, Inc. v. Am. Home Assurance Co., 
    226 N.J. Super. 200
    , 219 (App. Div. 1988) (holding that “diminution in value is the
    33
    standard measure of damages in breach of warranty cases. In a few cases,
    however, the appropriate standard is the cost of repairs”). Accordingly, the
    trial court properly recognized that plaintiff could pursue damages based on
    class members’ out-of-pocket damages for costs of repair as a remedy for
    breach of warranty, distinct from her diminution-in-value claim.
    3.
    The central question in this appeal is whether the trial court properly
    permitted plaintiff’s brake-repair claim to be asserted classwide, supported
    only by aggregate proofs. As did the trial court when it granted a new trial on
    damages, we apply the principles set forth in Muise and other case law to the
    out-of-pocket repair cost claim that plaintiff presented at trial.
    As the record makes clear, plaintiff presented no basis for a presumption
    -- much less for a conclusion -- that all members of the class suffered damages
    for out-of-pocket brake repairs necessitated by the Kia Sephia’s brake defect.
    Plaintiff did not contend that every member of her expansive class of 8400
    owners and lessees incurred an out-of-pocket loss. Indeed, plaintiff’s expert,
    King, candidly admitted that his estimate of average out-of-pocket costs would
    not apply to class members whose experience with their vehicles matched
    various scenarios posed to him at trial.
    34
    The uncertainty about class members’ damages claims derived from the
    expansive definition of plaintiff’s class. As the class was proposed and as it
    was certified, it was not limited to New Jersey owners and lessees of Kia
    Sephias who incurred out-of-pocket expenses for repairs and maintenance
    because of the brake defect. Instead, with narrow exceptions, the class
    included “[a]ll residents of the State of New Jersey who purchased or leased” a
    Kia Sephia in the relevant model years over the six years preceding the filing
    of the complaint. Yet, any class member who did not experience problems
    with the vehicle’s brakes -- as did three Kia Sephia owners who opted out of
    the class and testified for defendant -- would incur no out-of-pocket costs.
    Any class member whose Kia Sephia did not require brake repairs more
    frequently than it would have absent the defect would incur no out-of-pocket
    costs. And any class member whose brakes required extra repairs by virtue of
    the brake defect, but whose repairs were paid for by Kia under warranty,
    would incur no out-of-pocket costs.9 In short, plaintiff’s class included an
    undetermined number of members who stood to gain a windfall by virtue of
    the jury’s award of $750 per class member for brake repairs.
    9
    In Thiedemann, the Court rejected class action claims premised on alleged
    breaches of the CFA, the implied warranty of merchantability under N.J.S.A.
    12A:2-314, and the Magnuson-Moss Act because the vehicle defects at issue
    were “addressed by warranty, at no cost to the consumer.” 
    183 N.J. at 238-39, 251
    .
    35
    Even if plaintiff could demonstrate that all members of the class
    sustained an out-of-pocket loss, she did not present a reliable mathematical
    formula by which the jury could fairly quantify that loss. See Muise, 
    371 N.J. Super. at 28-29
    ; Ridgeway, 946 F.3d at 1086-87; Day, 827 F.3d at 835;
    Newton, 259 F.3d at 187-89.
    The estimate provided by plaintiff’s expert, King, was based on three
    premises: that an average brake repair cost $250 in New Jersey during the
    relevant period; that the “life span” of an average Kia Sephia in the relevant
    model years -- apparently defined as the time period in which the original
    owner or lessee would retain the vehicle -- would be 100,000 miles; and that
    because of the brake defect in the vehicles, an average Kia Sephia in the
    relevant model years would require a brake repair every 10,000 miles, instead
    of every 20,000 miles, which King considered the expected interval for a brake
    repair.
    The first of those premises was amply supported by King’s research. He
    conducted an informal telephone survey of six or seven New Jersey Kia
    dealers, inquired as to what each of them would charge for a brake repair, and
    averaged the estimates provided.
    The second and third bases for King’s testimony, however, rested on an
    inadequate foundation. King’s estimate that Kia Sephias had an average “life
    36
    span” of 100,000 miles, during which the class member owner or lessee would
    retain the vehicle, was supported only by general information as to the length
    of time that consumers drive their cars and statistics on how many miles an
    average car is driven per year, as well as a Kia document suggesting that the
    Kia Sephia could be driven as much as 200,000 miles. That estimate was
    unsupported by the slightest inquiry as to the length of time that the actual Kia
    Sephia owners and lessees in the class retained their vehicles. It represented
    nothing more than guesswork.
    Most importantly, King’s assertion that the average Kia Sephia would
    need a brake repair every 10,000 miles was untethered to the real-world
    experience of the class. In support of his 10,000 miles figure, King cited
    nothing more than a few anecdotal reports in defendant’s files from Kia Sephia
    owners, most or all in other states, who complained of brake problems when
    the mileage on their cars was in the general vicinity of that benchmark. King
    also alluded to a study of what he conceded were the extreme driving
    conditions faced by Los Angeles drivers. Moreover, King had no information
    on the brake performance of the class members’ vehicles outside of the limited
    and nonrepresentative sample that appeared in Kia’s documents on warranty
    repairs; as he conceded, “[t]hat data just wasn’t available.” The information
    37
    gathered by King simply did not support an accurate estimate of the frequency
    of brake repairs to the Kia Sephias owned by the class.
    In short, plaintiff’s expert had no basis to develop a reliable
    mathematical formula for estimating the average out-of-pocket costs incurred
    by members of that class, and he did not present such a formula.10
    D.
    Like Muise, this case is not a setting in which class members’ claims for
    damages could fairly be premised on aggregate proofs. The trial court
    correctly determined that plaintiff’s claim for out-of-pocket brake-repair costs
    required individualized determinations, and that its initial decision to submit
    10
    When it approved King’s estimate as a classwide model for out-of-pocket
    damages in this case, the Appellate Division relied heavily on the
    Pennsylvania Supreme Court’s decision in Samuel-Bassett v. Kia Motors
    America, Inc., another class action involving the Kia Sephia in which King
    testified for the plaintiff class. Little, 455 N.J. Super. at 432-34. In the
    Appellate Division’s view, the Pennsylvania Supreme Court held that King’s
    aggregate proof of out-of-pocket damages in the Pennsylvania class action was
    reliable and properly admitted in that case. Ibid. Indeed, the Appellate
    Division suggested that had the Pennsylvania Supreme Court decided Samuel-
    Bassett before the trial court’s decision granting a new trial in this case, the
    trial court would have denied that motion. Id. at 432-33. In fact, the
    Pennsylvania Supreme Court held that defendant had waived its objection to
    King’s damages model in the Pennsylvania case, and expressly declined to
    reach the question of whether that model was a reliable basis for aggregate
    proof. Samuel-Bassett, 34 A.3d at 41 & n.27 (“Given the limited nature of
    [the defendant’s] preserved challenge, we need not, and therefore do not,
    express a definitive view on . . . whether the methodology of Bassett’s expert
    in estimating individual damages here was sound.”). The Appellate Division’s
    reliance on Samuel-Bassett is thus misplaced.
    38
    the question of repair damages to the jury based solely on King’s classwide
    proofs resulted in a “miscarriage of justice under the law.” See R. 2:10-1. The
    court properly granted defendant’s motion for a new trial limited to that aspect
    of plaintiff’s damages claim.
    V.
    A.
    We next consider the trial court’s decertification of the class for
    purposes of individualized assessments of class members’ claims for repair
    damages.
    The decertification of a class, in whole or in part, is one of the remedies
    available to a trial court under Rule 4:32-2. As this Court has observed, “Rule
    4:32 vests in the trial court substantial control over management of a class
    action. A trial court can mold the class . . . and, in an appropriate case, can
    even decertify a class.” In re Cadillac V8-6-4 Class Action, 
    93 N.J. 412
    , 437
    (1983); see also Lee v. Carter-Reed Co., L.L.C., 
    203 N.J. 496
    , 530 (2010)
    (“[A] trial court always will have options at its disposal, such as subdividing
    the class, if necessary, or, in a worst case scenario, decertifying the class if
    justice cannot be achieved through a class action.”); Iliadis, 
    191 N.J. at 119
    (noting the court’s authority to “alter or amend the certification of a class” and
    39
    citing In re Cadillac for the proposition that a court has the authority to
    decertify a class).
    We review the trial court’s decision decertifying the class for abuse of
    discretion. See Dugan, 231 N.J. at 50 (applying abuse of discretion standard to
    certification decision); In re Cadillac, 93 N.J. at 438-39 (same).
    The governing standard for decertification, like the standard for class
    certification, is prescribed by Rule 4:32-1(a). That Rule requires a party
    seeking to certify a class to demonstrate that
    (1) the class is so numerous that joinder of all members
    is impracticable, (2) there are questions of law or fact
    common to the class, (3) the claims or defenses of the
    representative parties are typical of the claims or
    defenses of the class, and (4) the representative parties
    will fairly and adequately protect the interests of the
    class.
    [R. 4:32-1(a).]
    Should the plaintiff satisfy those requirements, the court then applies
    Rule 4:32-1(b), which provides in relevant part:
    (b) Class Actions Maintainable. An action may be
    maintained as a class action if the prerequisites of
    paragraph (a) are satisfied, and in addition:
    ....
    (3) the court finds that the questions of law or fact
    common to the members of the class predominate
    over any questions affecting only individual
    40
    members, and that a class action is superior to
    other available methods for the fair and efficient
    adjudication of the controversy. The factors
    pertinent to the findings include:
    (A) the interest of members of the class in
    individually controlling the prosecution or
    defense of separate actions;
    (B) the extent and nature of any litigation
    concerning the controversy already
    commenced by or against members of the
    class;
    (C) the desirability or undesirability in
    concentrating the litigation of the claims in
    the particular forum; and
    (D) the difficulties likely to be encountered
    in the management of a class action.
    [R. 4:32-1(b).]
    Under Rule 4:32-1(b)’s predominance standard, the court first
    undertakes “a qualitative assessment of the common and individual questions
    rather than a mere mathematical quantification of whether there are more of
    one than the other.” Lee, 203 N.J. at 519-20 (citing Iliadis, 
    191 N.J. at 108
    ).
    Second, the court considers “whether the ‘benefit’ of resolving common and
    presumably some individual questions through a class action outweighs doing
    so through ‘individual actions.’” Id. at 520 (quoting Iliadis, 
    191 N.J. at 108
    ).
    “A third inquiry is whether a class action presents a ‘common nucleus of
    41
    operative facts.’” 
    Ibid.
     (quoting Iliadis, 
    191 N.J. at 108
    ). “[W]e heed our
    prior observation that ‘the answer to the issue of predominance is found . . . in
    a close analysis of the facts and law.’” Iliadis, 
    191 N.J. at 109
     (omission in
    original) (quoting In re Cadillac, 93 N.J. at 434).
    B.
    In its determination of post-trial motions, the trial court left undisturbed
    its certification of the class for purposes of liability but reached the opposite
    conclusion on the question of damages. Having explored the deficiencies in
    plaintiff’s aggregate proofs on the cost of repair, deemed an individualized
    inquiry to be the only fair way to determine class members’ out-of-pocket
    losses, and ordered a new trial on damages, the trial court properly reassessed
    the question of predominance under Rule 4:32-1(b)(3). Informed by the trial
    evidence and the jury’s rejection of plaintiff’s diminution-in-value expert
    proofs, the trial court held that for purposes of the new trial on class members’
    out-of-pocket costs, common questions no longer predominated over
    individualized inquiries as to the class members’ damages.
    The trial court conducted a careful assessment of the common and
    individual questions. It concluded that the class’s damage claims could not be
    resolved in a common proceeding. The court found no single factual pattern
    on the limited question of damages that remained. See Lee, 203 N.J. at 519-
    42
    20; Iliadis, 
    191 N.J. at 108
    . The trial court’s determination was firmly
    grounded in the trial evidence, which demonstrated the disparate experiences
    of individual class members.
    We view the trial court’s decertification order to be a correct application
    of Rule 4:32-1(b)’s predominance standard and a proper exercise of the court’s
    discretion in the management of this case.
    VI.
    Finally, we review the adoption of the Report and Recommendations of
    the second Special Master by the judge assigned to handle post-trial
    proceedings.
    When we review a Special Master’s findings and conclusions, we use
    our “ordinary standards of review, considering them in the same manner as we
    would the findings and conclusions of a judge sitting as a finder of fact.” State
    v. Chun, 
    194 N.J. 54
    , 93 (2008). We “accept[] the fact findings of a special
    master to the extent they are supported by ‘substantial credible evidence in the
    record.’” State v. Cassidy, 
    235 N.J. 482
    , 491 (2018) (quoting Chun, 
    194 N.J. at 93
    ).
    With the consent of the parties, the Assignment Judge and the judge
    assigned to handle post-trial proceedings jointly appointed the second Special
    Master. The court assigned the Special Master to conduct a claims proceeding
    43
    based on claim forms that class members had submitted at an earlier stage of
    the case, and to submit a Report and Recommendations with a proposed
    determination of all disputed claims, subject to both parties’ right to object.
    The Special Master undertook a series of steps to ensure that as many
    class members as possible received full and fair consideration of their claims.
    He established detailed procedures for the handling of discrete categories of
    claims, such as claims in which the class member failed to sign the form,
    claims in which the class member provided no information, and claims in
    which the class member provided partial but incomplete information in support
    of the claim. The Special Master declined to address claims in which the class
    member did not sign the form or provided no information at all but allowed
    class members who had submitted insufficient information on their claim
    forms to present their claims before him. He made rulings on numerous issues
    raised by the parties with respect to individual claims.
    The Special Master established fair and workable criteria for a
    claimant’s recovery of the costs that he or she spent on a brake repair . He
    deemed a repair to be compensable if it was performed within the first three
    years that the claimant owned the car or when the car had been driven fewer
    than 36,000 miles, if the repair was conducted when the car had been driven
    44
    fewer than 20,000 miles since the most recent repair, and if defendant did not
    pay for the repair.
    In accordance with those criteria, the Special Master adjudicated 1201
    claims. The parties then conferred with respect to the Special Master’s
    determination and resolved all but ninety-three claims, which were referred to
    the Special Master for resolution. Of those, the Special Master recommended
    that the court deny twenty-two claims, award partial recovery to thirty-three
    claimants, and award full recovery to the remaining claimants.
    Both parties filed objections to the Special Master’s Report and
    Recommendations. In a detailed written opinion, the judge handling post-trial
    proceedings considered and rejected the parties’ objections. The judge found
    the Special Master’s findings to be supported by substantial credible evidence
    in the record and adopted those findings.
    We agree with the post-trial judge’s determination. As plaintiff
    recognized when she suggested a claims proceeding on damages to the trial
    court during a hearing on class certification, such a proceeding may be an
    equitable and practical method of resolving damages claims. See, e.g., In re
    Nexium Antitrust Litig., 
    777 F.3d 9
    , 19 (1st Cir. 2015) (noting that an
    individual claims process may be conducted at the liability and damages stage
    of class action litigation); Kern v. Siemens Corp., 
    393 F.3d 120
    , 127 (2d Cir.
    45
    2004) (“[O]nce defendant’s liability is established, the court may be justified
    in . . . requiring class members to file statements of their claims . . . .” (first
    omission in original) (quoting 7B Wright, Miller & Kane, Federal Practice &
    Procedure § 1787 at 217 (2d ed. 1986))); Kyriazi v. W. Elec. Co., 
    647 F.2d 388
    , 392 (3d Cir. 1981) (noting that “[t]he proof of claim procedure employed
    by the district court was not novel” and that “[t]he consensus among courts
    and commentators” recognized that the procedure can “serve as an essential
    aid” in class actions). The trial judge and post-trial judge acted within their
    discretion when they authorized such a procedure in this action.
    Moreover, the second Special Master conducted the claims process with
    precision and care. As the claim form made clear, a claimant’s failure to retain
    documentation of his or her brake repairs did not bar his or her otherwise valid
    claim. The Special Master reviewed each claim, referring to defendant’s
    records pertaining to the claimant’s vehicle and other relevant documents. He
    made individualized determinations as to the brake repairs conducted on each
    vehicle, and any payments for those repairs under defendant’s warranty. The
    Special Master thoughtfully considered and resolved the many objections made
    by both parties.
    This was, in short, a fair and exemplary claims process. We agree with
    the judge who oversaw this case after trial that the Special Master’s Report and
    46
    Recommendations were supported by substantial credible evidence in the
    record. See Cassidy, 235 N.J. at 491. We hold that the court properly adopted
    the Special Master’s findings.
    VII.
    The determination of the Appellate Division is reversed, and the final
    judgment entered by the trial court on September 10, 2015 is reinstated.
    CHIEF JUSTICE RABNER and JUSTICES LaVECCHIA, ALBIN,
    FERNANDEZ-VINA, and TIMPONE join in JUSTICE PATTERSON’s opinion.
    JUSTICE SOLOMON did not participate.
    47