Toyota Motor Corp. v. Gregory

136 S.W.3d 35, 2004 WL 1123533
CourtKentucky Supreme Court
DecidedJune 14, 2004
Docket2001-SC-0966-DG
StatusPublished
Cited by63 cases

This text of 136 S.W.3d 35 (Toyota Motor Corp. v. Gregory) is published on Counsel Stack Legal Research, covering Kentucky Supreme Court primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Toyota Motor Corp. v. Gregory, 136 S.W.3d 35, 2004 WL 1123533 (Ky. 2004).

Opinions

GRAVES, Justice.

On June 8, 1995, Appellee, Yu Hsia Gregory, was involved in a minor automobile accident wherein her 1993 Toyota Corolla collided with a small Isuzu moving van. Gregory’s left arm was directly over the airbag module when it deployed, resulting in fractures to her radius and ulna, a fractured nasal bone, a dislocated tooth, second-degree burns to her forehead and cheek, and lacerations and contusions to her face and chest.

Gregory subsequently filed suit in the Jefferson Circuit Court against Appellant, Toyota Motor Corporation, alleging claims for strict liability based on design and manufacturing defects, misrepresentation, failure to warn, and breach of warranty. Gregory argued that the airbag in her Toyota Corolla deployed too aggressively resulting in her injuries, and also that Toyota failed to adequately warn her of the potential serious injuries caused by airbag deployment.

At trial, Gregory’s expert, William Broadhead, a mechanical and safety restraint engineer, testified that he compared the Toyota airbag system with a Honda airbag system, and determined that the Honda’s “rise rate” — the measurement of the pressure released by the airbag inflator over time (milliseconds) — was significantly lower than the Corolla’s. Broad-head concluded that at the time of the manufacture of the Corolla airbag system, the technology was available to produce an airbag system that would not have caused the injuries sustained by Gregory.

To rebut Broadhead’s opinions, one of Toyota’s experts, Robert Gratzinger compared the Corolla airbag inflator with those of 35 other vehicles by various manufacturers. Gratzinger concluded that the deployment characteristics of Toyota’s system were usual and customary and, in fact, state of the art, rather than unreasonably dangerous. Gratzinger stated that the inflation rate of the Corolla airbag was in the low average of all of the vehicles tested. Over Gregory’s objection, the trial court admitted what is now referred to as the “Gratzinger Report.”

At the close of evidence, the trial court instructed the jury, in part, that to return a verdict in favor of Gregory, it had to find that: (1) the Corolla airbag was defectively designed and unreasonably dangerous; (2) the defective design existed at the time of manufacture; (3) an ordinarily prudent manufacturer of similar vehicles would not have put the Corolla on the market in that condition; (4) the defective condition was a substantial factor in causing Gregory’s injuries; and (5) that Gregory had “proposed a feasible safer alternative design.”

The jury returned a verdict in favor of Toyota. Gregory appealed and the Court of Appeals subsequently reversed the trial court on the grounds that the trial court erred by: (1) admitting into evidence the results of Gratzinger’s testing of the manufacturers’ airbag inflators because the testing did not constitute a statistically valid sample; and (2) improperly instructing the jury on strict liability in a design defects case. This Court thereafter granted discretionary review.

I. ADMISSIBILITY OF EXPERT TESTIMONY BY ROBERT GRATZINGER

Prior to trial, Toyota’s expert, Robert Gratzinger conducted extensive testing of [38]*38airbag inflators from a wide variety of different automotive vehicle models. Grat-zinger explained at trial that his intent in testing a wide variety of inflators was to demonstrate the equally wide variety of inflation characteristics in airbags utilized by different manufacturers, and to demonstrate the fallacy of arguing that any particular airbag system is defective simply because it inflates more powerfully than the least powerful system on the market.

Gratzinger tested 78 inflators from 26 different vehicle models from the late 1980’s to the middle 1990’s. The 26 vehicles included models manufactured by Audi, BMW, Buick, Chevrolet, Dodge, Ford, Honda, Mazda, Mercedes, Mitsubishi, Nissan, Saab, and Volvo. Gratzinger stipulated that the vehicles he selected for testing were not intended to be a statistical cross-section or sample of the entire automotive industry.

The inflator testing was performed at facilities owned by an airbag supplier, following a procedure published by the Society of Automotive Engineers (“SAE”) entitled “Airbag Inflator Ballistic Tank Test Procedure,” Recommended Practice J2238. This published protocol is regularly followed and generally accepted throughout the automotive industry. In fact, Gregory’s expert, Broadhead, utilized the same protocol when he tested two Honda infla-tors.

The data collected by Gratzinger was set forth in a lengthy written report which was produced to Gregory’s counsel well in advance of trial. The Gratzinger report contained all of the computer-generated graphs with the maximum pressure and maximum slope of each inflator tested. The same test results were compiled into two bar charts that were introduced at trial as Defendants’ Exhibits. The results showed that some of Toyota’s competitors utilized inflators which were more powerful than the Corolla inflator, while others utilized inflators which were less powerful. The evidence illustrated and supported Gratzinger’s opinions that the deployment characteristics of the airbag system in question were usual and customary and not unreasonably dangerous, and further that the Corolla airbag system was in accordance with accepted industry standards and met state-of-the-art automotive and engineering practices.

Prior to trial, Gregory filed a motion in limine1 to exclude the admissibility of Gratzinger’s report and testimony, on the grounds that the data was intentionally skewed to put the Corolla in the low average inflation rates, by including in the tests vehicles having sizes, weights, and crash pulses very different from the Corolla’s. Because these factors are relevant to airbag design and effectiveness, Gregory argued that the selection of vehicles for Toyota’s test, including many vehicles not comparable to the subject Corolla, failed to follow any scientific methodology, making the evidence irrelevant and inadmissible pursuant to Daubert v. Merrell Dow Pharmaceuticals, 509 U.S. 579, 113 S.Ct. 2786, 125 L.Ed.2d 469 (1993) and Goodyear Tire and Rubber Co. v. Thompson, Ky., 11 S.W.3d 575 (2000).

Attached to Gregory’s motion was the affidavit of a statistician and economics professor, Babu Nahata, Ph.D.2 Dr. Naha-ta concluded that the inflators tested by Gratzinger were not selected in accordance [39]*39with acceptable scientific methods because they were not randomly selected from the relevant population, and therefore, the testing was inappropriate, meaningless and no scientific and valid conclusions could be drawn from it.

Toyota responded that the test results were valid because the test methodology was scientifically reliable, and that the purpose of the testing was to illustrate Gratzinger’s previously disclosed opinions, not to prove any statistical facts. The trial court denied the motion to exclude Grat-zinger’s testimony, ruling that Gregory’s objections to the evidence went to its weight, not its admissibility. The trial court observed that Gratzinger was subject to cross-examination on the differences between the Corolla and many of the vehicles tested.

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136 S.W.3d 35, 2004 WL 1123533, Counsel Stack Legal Research, https://law.counselstack.com/opinion/toyota-motor-corp-v-gregory-ky-2004.