[Bring_Back_Shantz]

Originally Posted by arsenal

The tesla has something similar already. As the vehicle brakes, it converts some of the energy and stores it back in the battery. It isn't very much though.

I guess you could put intakes or a hood scoop on the vehicle to convert wind into electricity while you are driving. I don't think you could generate enough electricity to keep the batteries charged though. You probably could extend the range of the vehicle by about 50 miles though.

NO YOU COULDN'T.
If you only used the fans durring braking you might get some sort of power back but I doubt it'd be worth the effort, but if they were going the entire time the drag caused by them would be more than the power they produced.
You can't break the laws of thermodynamics! That's why they're called laws.