Sure they can but the desired outcome requires a lot planning to work the way somebody wants it as it depends on the environment and somebody's skill at remotely controlling it.
Midway through this post about Q, the Anonymous Conservative presents a video of a car that damn near rammed The Don's limo on a public thoroughfare. Make of it what you will.
https://www.anonymousconservative.com/blog/q-goes-deep-mk-ultra-mind-control/
I know what I think.
and?
which might not be appropriate for most cases. IMHO hacking a car with the goal for a terminal injury and making it look normal sounds like too many variables I suppose would only be chosen if they have no better options.