Key legal question
Whether the federal court may correct the cantonal finding that the car ended in the embankment and other factual findings.
Extracted holding
Only the unsupported finding that the car ended in the embankment was corrected; the remaining factual assessment was not manifestly inaccurate.
Extracted reasoning
The federal court is bound by cantonal findings unless manifestly inaccurate or incomplete. The challenged weather-and-road version was rejected as an assessment of evidence, not arbitrariness.