Whether the evidence was sufficient to allow the jury to find that General Motors' steering defect proximately caused the accident.
Holding
Yes. Although the proof of causation was thin, it was not so deficient that the district court committed reversible error by submitting the case to the jury or by denying General Motors' post-verdict motions.
Reasoning
General Motors' own letters to federal safety officials and its dealer bulletin established that the car had an inherent steering defect: under particular road and driving conditions, loose stones could lodge near the steering coupling and interfere with steering. The evidence also placed Leathers's vehicle on gravelly, wavy, and pothole-filled surfaces of the kind General Motors had identified as hazardous.
The evidence did not directly establish every step in the proposed causal chain. No witness saw a stone enter the steering mechanism, and there was no evidence that the car pitched excessively or that its crossmember scooped up debris. Leathers's initial account to the investigating officer also mentioned only the dog and his evasive swerve, not a steering malfunction.
Still, the court concluded that this circumstantial evidence was enough to create a jury question. The case was weak on proximate cause, but it did not present the exceptional circumstance required for appellate reversal based solely on the denial of a directed verdict or judgment notwithstanding the verdict. Unlike cases where the defendant's alleged defect was no more likely than numerous unrelated explanations, the evidence here provided a permissible, though tenuous, basis to connect the known steering defect to the crash.