[notatoad]

the government already owns the roads and enforces speed limits. speed governors are already required for scooters and e-bikes in many jurisdictions.

requiring cars to have the same limiters as scooters if they want to access the government-owned roads is not a huge change in scope.

[rootusrootus]

Even a Tesla can't reliably figure out what the speed limit is sometimes. I don't know that I want a governor that may suddenly decide I can only do 25 mph on the interstate.

[zip1234]

Even just capping all road worthy vehicles to 80 would probably save a lot of lives.