It took being hit by a car three times (two minor collisions, the last one hospitalized me) for me to give up on the e-bike idea. Car drivers (at least in the Bay Area) are not ready for bikes going at speed, IMHO, they just don’t look, or at least, they don’t see.

This thing might work out better than the bike because it’s a lot more visible, but I actually doubt there’d be much take-up. As someone else said, a second-hand leaf or similar would probably be better.