Other things being equal (total number of deaths, age/health/profession ignored), I chose for the people in the car to die because "sudden brake loss" indicates

Other things being equal (total number of deaths, age/health/profession ignored), I chose for the people in the car to die because "sudden brake loss" indicates that the people in the car are likely not taking care of their car. This is assuming the status quo of people mostly owning their own car. Ridesharing wasn't mentioned anywhere.