Question juridique clé
Whether the cantonal court violated the presumption of innocence / in dubio pro reo by preferring the other driver's account.
Solution extraite
No. The court could, without arbitrariness, prefer the other driver's consistent statement over the recourant's changing version and thus was not required to retain a serious and insurmountable doubt.
Motifs extraits
The Federal Court held that the lower court's fact-finding was not arbitrary in its result. The other driver's account remained consistent on the essential point, while the recourant's own version changed after the prefectural decision.