Having both flown planes and driven cars, they are definitely not.

I guess rockets are a kind of aircraft. That's working.

Also trains

Yeah and sailboats it’s and horses too!

anyone have any idea of how frequently horse-drawn carriages crashed in dense urban inner city environments 120 years ago normalized against the incidence of crashes for contemporary cars on the same streets at the same speeds?

Maybe this could form the basis for a kind Turing test for level 1-4 autonomous Vehicles.