2) exclusively sell cars with ludicrous acceleration and top speed
3) set legal speed limit at 1/6th the top speed of most vehicles
4) enforce strict financial penalties for operating one’s obligatory high-powered vehicle at more than 1/6th its maximum speed.
I’m strongly anti-car - I think we fucked up a whole lot designing society the way we did, but at this point, actual strict enforcement of speed limits with financial penalties is just robbery. If you want fewer people to die in car accidents, build a world that doesn’t obligate everyone to drive, or build a world where the vehicles for sale aren’t all SUVs with 0-60 times that would embarrass a Ferrari from 40 years ago, but don’t just start fining people when they use the vehicle you made them buy to do the thing it was made to do.