I love your idea. I.m walking around with the same. Also the same problems. But in my mind it would also be a small kitcar. Aero body inspired bij cars as de vx xl1. But is want a hybrid. A 25/30 kw electric engine. With a batary pack for a ranfe of 50 60 kilometers. And a small efficient generator. Pushing a cobstand 8/10kw to keep the battery on level. Also brake regen. I would think it has enough power with a 30kw. And you would only need a 10kw to maintain speed
__________________
|