Oooh nice question. So, it’s estimated that one potato can produce as much energy as half an AA battery. An average remote controlled car needs about 8 AA batteries to last for a few hours… so I’d estimate that 16 potatoes would provide enough energy to power a remote controlled car 🙂
For a family car you’d need a mountain of potatoes… and for a racing car you’d probably need 5 mountains of potatoes haha. It means we could make lots of chips afterwards though, mmmmm. Like that idea.