I have a friend who worked for Chrysler until he retired recently build a dune buggy electric. He has tried and tried to find a way to charge all those batteries required to move the buggy down the road at speeds up to 65 mph...but, has first fought off the over heating problems, as the motor gets very hot, but has never been able to fully recharge all the batteries at one time... quite a machine to play with around town, but I wouldn't venture too far with it...lol