Why not just make a giant “slot-car” track for EVs to follow?
With the power feed built right into the road, the EVs could zip along just like the little slot-cars around the track.
Of course, if the power is in any way interrupted, the EV comes to an immediate screeching halt.
Sweden did install a slot car type system. Not sure how they expect to deal with snow and ice...it is Sweden after all.