I think range shouldn't be an
I think range shouldn't be an issue for electric car races. Instead of the very complicated alternative of covering the whole race track with wireless inductive chargers (which as you said it's technically feasible though extremely expensive) how about using battery swap stations? Probably it won't be the typical F1 pit stop, but with a well designed system, it shouldn't take longer than 1 minute to replace the battery of vehicle.
Nevertheless, I agree with you when you say that a good alternative is creating races that don't remind the public about typical combustion engine races.