I think that they are very good because they consume electricity instead of fuel, but the bad thing about these cars is that if something breaks, like a cable, it will not work again. I might be wrong, but I think that they need a lot of electricity to work, and I don't know if they have the same potential as a regular car. I think they don't. But when
the mechanics and designers make them better they (the cars) will be in higher demand.