Would it be feasible to have electric coils installed under the road, and power cars by electromagnetic induction? Have half of a transformer be in the car, connected to the electric motor / speed controls, and the other half be spaced every foot or so under each lane.
I guess a tamper-proof electric meter could be installed in each car, and someone from the power company could read this meter remotely for billing (like it's done now for water billing).
For areas where the coils are not available, still have a gasoline engine available.
Mike Darrett