They pretty much did. Cars get an insane amount of special legal treatment. It's basically legal to kill people with a car as long as you aren't drunk or grossly negligent.
I will be shocked if I live to see a year where AI kills more people than cars do legally.
> It's basically legal to kill people with a car as long as you aren't drunk or grossly negligent.
It's the same even without cars; if you kill someone by accidentally bumping into someone, or running them down with a bicycle, you aren't going to get charged with murder as long as you aren't grossly negligent.
Why do you want an exemption for cars?