What about the chemical engineers creating fuels that turn out environments into toxic hellholds? Where does all of the pollution in the world come from?
We could use engineering controls to limit the speed of consumer vehicles to 10 mph, still faster than a human can walk, but slow enough that most deadly accidents could be avoided.
Then establish administrative controls to have public transportation or other professional drivers (taxi operators) have "unlocked" vehicles. They would be required to have routine training and testing to keep their unlocked license.
It would affect fatal injury car accidents. A driver would have to be holding a knife pointed at their jugular to be killed in a 10 mph wreck (20 mph total relative speed of get hit another 10 mph limited car).