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We could call it: Train!

You could run a line overhead on pylons and put a pick up on a pole on the cars.

A smaller version of these things: https://sandtoft.org/wp/

You could combine the best of dodgem cars with drone nets by encasing all the highways in electrified wiring.

Some people drive as if they're in dodgem cars as it is.

I imagine this would make road repair even more common, intensive, and disruptive than it already is?

On today's episode of "HNer's totally realistic and not deluded idea"...

It already exists and works so, not that crazy

It's much more difficult when the ownership of the vehicles isn't centralized.