NOT PRECEDENTIAL
UNITED STATES COURT OF APPEALS FOR THE THIRD CIRCUIT ____________
No. 25-1847 ____________
JIM WANG; DEAN WANG; YU BAI, Appellants
v.
MASERATI NORTH AMERICA, INC.; JOHN DOES 1-10 ____________
On Appeal from the United States District Court for the District of New Jersey (D.C. No. 1:23-cv-02402) District Judge: Hon. Karen M. Williams ____________
Submitted Under Third Circuit L.A.R. 34.1(a) March 9, 2026
Before: HARDIMAN, KRAUSE, and MASCOTT, Circuit Judges
(Filed: April 3, 2026)
____________
OPINION * ____________
* This disposition is not an opinion of the full Court and pursuant to I.O.P. 5.7 does not constitute binding precedent. HARDIMAN, Circuit Judge.
New Jersey homeowners Jim and Dean Wang, along with their mother, Yu Bai
(collectively, the Wangs), appeal a summary judgment for Maserati North America, Inc.
(Maserati) on their strict product liability claims. We will affirm.
I
The Wangs rented their suburban home to Tyrese Maxey, a professional basketball
player with the Philadelphia 76ers. While Maxey’s family members were enjoying the
Christmas Eve holiday, a serious fire broke out and significantly damaged the home. The
expert witness hired by the Wangs, Nicholas Palumbo, opined that the fire originated in
the engine compartment of a vehicle manufactured by Maserati and stored in the home’s
integral garage. The vehicle was destroyed. 1
The vehicle was first sold by a Maserati dealer in August 2018 in Louisville,
Kentucky. Nearly two years later, Maxey purchased it from an auto shop in Dallas,
Texas. And in 2021, it was transported to his home in New Jersey. Maxey drove the
vehicle infrequently, though it had received maintenance work at least three times since
its first sale.
Palumbo concluded that “it [was] more likely than not” that the fire originated in
the vehicle’s “engine compartment.” App. 348. A retired fire investigator, Palumbo had
1 Multiple experts, including local fire authorities and private experts hired by Maserati and non-party insurance companies, examined the vehicle and the residence. But none concluded that the vehicle was the cause of the fire. All experts who opined on the cause of the fire either classified it as “undetermined” or affirmatively ruled out the vehicle as the cause.
2 experience determining the origin of fires, but he conceded he was not an expert in
determining the cause of fires, particularly those involving vehicles. And he confirmed in
his deposition that he had no opinion on the cause of this fire.
II 2
Under New Jersey’s products liability law, plaintiffs must prove that a defect:
(1) existed; (2) when the product left the defendant’s control; and (3) caused the injury to
a reasonably foreseeable user. See Jurado v. W. Gear Works, 619 A.2d 1312, 1317 (N.J.
1993); Myrlak v. Port Auth. of N.Y. & N.J., 723 A.2d 45, 52 (N.J. 1999); see also N.J.
Stat. Ann. § 2A:58C-2. To prove that the Maserati had either a design or manufacturing
defect, the Wangs could have relied on direct or circumstantial evidence, or they could
have “negate[d]” all other “likely causes of [product] failure.” Myrlak, 723 A.2d at 53.
The Wangs offered no expert testimony to prove any element of their claims. As
they acknowledge, Palumbo was not qualified to opine on either vehicle engines or the
causes of fires, nor did he opine on what caused the fire. They rely only on Palumbo’s
opinion on the fire’s origin. But that is not sufficient.
2 The District Court had jurisdiction under 28 U.S.C. § 1332. We have jurisdiction under 28 U.S.C. § 1291. Our review of a summary judgment is de novo. Tundo v. Cnty of Passaic, 923 F.3d 283, 286–87 (3d Cir. 2019). But we “generally review[] evidentiary decisions for abuse of discretion.” Great Am. Ins. Co. v. Norwin Sch. Dist., 544 F.3d 229, 251 (3d Cir. 2008). The Wangs also challenge the District Court’s order as it relates to the exclusion of Palumbo’s testimony to prove causation. Because Palumbo admitted he had no opinion on the cause of the fire and was not an expert on that matter, the District Court rightly excluded this testimony as evidence on causation. See Schneider ex rel. Est. of Schneider v. Fried, 320 F.3d 396, 404 (3d Cir. 2003); Fed. R. Evid. 702.
3 We conclude, as the District Court did, that the Wangs needed expert testimony
about the cause of the fire to succeed on their claims. Though the District Court reached
this conclusion in a thorough opinion, we depart from its analysis insofar as it held that
expert testimony is required every time the product is a “complex instrumentality,” like a
car. Wang v. Maserati N. Am., Inc., 2025 WL 957762, at *8 (D.N.J. Mar. 31, 2025). The
New Jersey Supreme Court has long rejected that categorical approach. See Jerista v.
Murray, 883 A.2d 350, 364 (N.J. 2005) (“We reject any reading of [our precedent] that
imposes a categorical expert testimony requirement when a complex instrumentality
within the exclusive control of the defendant causes an injury.”). But New Jersey law
does require expert testimony in products liability cases where “the average juror” cannot
“deduce what happened without resort to . . . technical knowledge.” Jerista, 883 A.2d at
365. Under such circumstances, like those presented here, the Wangs needed to provide
expert testimony about the fire’s cause or the mechanics of the vehicle’s engine that
could result in spontaneous combustion.
In Jerista, the Supreme Court of New Jersey held that expert testimony was not
needed where automatic doors, within the exclusive control of the defendant
supermarket, closed on a customer. Id. at 363. No one disputed that the automatic doors
caused the injury, and the court concluded that a jury could use ordinary knowledge to
infer that “automatic doors . . . should not generally close on customers causing injury.”
Id. at 354. The Wangs ask us to take this inferential leap several steps further to conclude
that a vehicle, long out of the manufacturer’s control, was both defective when it was sold
and that a latent defect caused this fire simply because one expert says the fire originated
4 in the vehicle. New Jersey law does not allow this series of attenuated inferences. See
Zaza v. Marquess & Nell, Inc., 675 A.2d 620, 627 (N.J. 1996) (“An inference of
defectiveness may not be drawn from the mere fact that someone was injured.”); Scanlon
v. Gen. Motors Corp., Chevrolet Motor Div., 326 A.2d 673, 681–82 (N.J. 1974) (not
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NOT PRECEDENTIAL
UNITED STATES COURT OF APPEALS FOR THE THIRD CIRCUIT ____________
No. 25-1847 ____________
JIM WANG; DEAN WANG; YU BAI, Appellants
v.
MASERATI NORTH AMERICA, INC.; JOHN DOES 1-10 ____________
On Appeal from the United States District Court for the District of New Jersey (D.C. No. 1:23-cv-02402) District Judge: Hon. Karen M. Williams ____________
Submitted Under Third Circuit L.A.R. 34.1(a) March 9, 2026
Before: HARDIMAN, KRAUSE, and MASCOTT, Circuit Judges
(Filed: April 3, 2026)
____________
OPINION * ____________
* This disposition is not an opinion of the full Court and pursuant to I.O.P. 5.7 does not constitute binding precedent. HARDIMAN, Circuit Judge.
New Jersey homeowners Jim and Dean Wang, along with their mother, Yu Bai
(collectively, the Wangs), appeal a summary judgment for Maserati North America, Inc.
(Maserati) on their strict product liability claims. We will affirm.
I
The Wangs rented their suburban home to Tyrese Maxey, a professional basketball
player with the Philadelphia 76ers. While Maxey’s family members were enjoying the
Christmas Eve holiday, a serious fire broke out and significantly damaged the home. The
expert witness hired by the Wangs, Nicholas Palumbo, opined that the fire originated in
the engine compartment of a vehicle manufactured by Maserati and stored in the home’s
integral garage. The vehicle was destroyed. 1
The vehicle was first sold by a Maserati dealer in August 2018 in Louisville,
Kentucky. Nearly two years later, Maxey purchased it from an auto shop in Dallas,
Texas. And in 2021, it was transported to his home in New Jersey. Maxey drove the
vehicle infrequently, though it had received maintenance work at least three times since
its first sale.
Palumbo concluded that “it [was] more likely than not” that the fire originated in
the vehicle’s “engine compartment.” App. 348. A retired fire investigator, Palumbo had
1 Multiple experts, including local fire authorities and private experts hired by Maserati and non-party insurance companies, examined the vehicle and the residence. But none concluded that the vehicle was the cause of the fire. All experts who opined on the cause of the fire either classified it as “undetermined” or affirmatively ruled out the vehicle as the cause.
2 experience determining the origin of fires, but he conceded he was not an expert in
determining the cause of fires, particularly those involving vehicles. And he confirmed in
his deposition that he had no opinion on the cause of this fire.
II 2
Under New Jersey’s products liability law, plaintiffs must prove that a defect:
(1) existed; (2) when the product left the defendant’s control; and (3) caused the injury to
a reasonably foreseeable user. See Jurado v. W. Gear Works, 619 A.2d 1312, 1317 (N.J.
1993); Myrlak v. Port Auth. of N.Y. & N.J., 723 A.2d 45, 52 (N.J. 1999); see also N.J.
Stat. Ann. § 2A:58C-2. To prove that the Maserati had either a design or manufacturing
defect, the Wangs could have relied on direct or circumstantial evidence, or they could
have “negate[d]” all other “likely causes of [product] failure.” Myrlak, 723 A.2d at 53.
The Wangs offered no expert testimony to prove any element of their claims. As
they acknowledge, Palumbo was not qualified to opine on either vehicle engines or the
causes of fires, nor did he opine on what caused the fire. They rely only on Palumbo’s
opinion on the fire’s origin. But that is not sufficient.
2 The District Court had jurisdiction under 28 U.S.C. § 1332. We have jurisdiction under 28 U.S.C. § 1291. Our review of a summary judgment is de novo. Tundo v. Cnty of Passaic, 923 F.3d 283, 286–87 (3d Cir. 2019). But we “generally review[] evidentiary decisions for abuse of discretion.” Great Am. Ins. Co. v. Norwin Sch. Dist., 544 F.3d 229, 251 (3d Cir. 2008). The Wangs also challenge the District Court’s order as it relates to the exclusion of Palumbo’s testimony to prove causation. Because Palumbo admitted he had no opinion on the cause of the fire and was not an expert on that matter, the District Court rightly excluded this testimony as evidence on causation. See Schneider ex rel. Est. of Schneider v. Fried, 320 F.3d 396, 404 (3d Cir. 2003); Fed. R. Evid. 702.
3 We conclude, as the District Court did, that the Wangs needed expert testimony
about the cause of the fire to succeed on their claims. Though the District Court reached
this conclusion in a thorough opinion, we depart from its analysis insofar as it held that
expert testimony is required every time the product is a “complex instrumentality,” like a
car. Wang v. Maserati N. Am., Inc., 2025 WL 957762, at *8 (D.N.J. Mar. 31, 2025). The
New Jersey Supreme Court has long rejected that categorical approach. See Jerista v.
Murray, 883 A.2d 350, 364 (N.J. 2005) (“We reject any reading of [our precedent] that
imposes a categorical expert testimony requirement when a complex instrumentality
within the exclusive control of the defendant causes an injury.”). But New Jersey law
does require expert testimony in products liability cases where “the average juror” cannot
“deduce what happened without resort to . . . technical knowledge.” Jerista, 883 A.2d at
365. Under such circumstances, like those presented here, the Wangs needed to provide
expert testimony about the fire’s cause or the mechanics of the vehicle’s engine that
could result in spontaneous combustion.
In Jerista, the Supreme Court of New Jersey held that expert testimony was not
needed where automatic doors, within the exclusive control of the defendant
supermarket, closed on a customer. Id. at 363. No one disputed that the automatic doors
caused the injury, and the court concluded that a jury could use ordinary knowledge to
infer that “automatic doors . . . should not generally close on customers causing injury.”
Id. at 354. The Wangs ask us to take this inferential leap several steps further to conclude
that a vehicle, long out of the manufacturer’s control, was both defective when it was sold
and that a latent defect caused this fire simply because one expert says the fire originated
4 in the vehicle. New Jersey law does not allow this series of attenuated inferences. See
Zaza v. Marquess & Nell, Inc., 675 A.2d 620, 627 (N.J. 1996) (“An inference of
defectiveness may not be drawn from the mere fact that someone was injured.”); Scanlon
v. Gen. Motors Corp., Chevrolet Motor Div., 326 A.2d 673, 681–82 (N.J. 1974) (not
allowing an inference that the “defect existed in the hands of the manufacturer” when a
vehicle owned for nine months “malfunctioned violently” while being operated by the
plaintiff).
As we have explained, the Wangs did not offer evidence to show that the vehicle
failed at all. But even if we assume that the fire was caused by the vehicle—a leap
unsupported by expert testimony—the Wangs failed to negate other potential causes of
the vehicle’s failure. They admit that the vehicle was used, purchased over three years
before the fire, and had received maintenance that included “an emissions recall
action” and a repair of “the tire pressure monitoring system and the instrument cluster.”
Wangs Br. 24 (citing App. 279–80). Without more, the Wangs cannot prove that there
was a defect, that it existed at the time the product left Maserati’s control, or that it
caused the fire. 3
***
For the stated reasons, we will affirm the District Court’s order.
3 The Wangs’ negligence claim also fails. As we have recognized, “negligence is no longer viable as a separate claim for harm caused by a defective product” under New Jersey Law. Port Auth. of N.Y. & N.J. v. Arcadian Corp., 189 F.3d 305, 313 (3d Cir. 1999); see Tirrell v. Navistar Intern., Inc., 591 A.2d 643, 647 (N.J. Super. Ct. App. Div. 1991). And though the Wangs originally sought to recover under a failure to warn theory, they conceded that claim at summary judgment, so we do not reach it.