Either way, to return from the tangent, it is clear that car/mechanical failure is a looong way down, with the top 10 spots occupied by driver error.
I mean, look at it, trains and airplanes are 95% automated these days, and that's why they're so safe. Driving is by far the most dangerous mode of mass travel, and it's because it involves humans.
I am actually a bike rider for most things, and being exposed like that makes you keenly aware of how overtaxed a lot of drivers are with their task. It's a classic case of
Illusory Superiority, because most people actually think they're good drivers, whereas in reality their lack of perception of the complexity at hand lures them into a false sense of security.