The explosion in vehicle size over the last 10 years in U.S is off-the-scale absurd, while per-capita fatal crashes have only gone UP over the same period[1].
1. https://www.iihs.org/topics/fatality-statistics/detail/yearl...
EDIT: You wouldn't believe how many GMC Yukons I see in my wealthy SF suburb that are used to shuffle 8 year-olds from school to soccer practice. For the uninitiated: https://www.carsized.com/en/cars/compare/ford-focus-2013-5-d...