[The Radium King]

cheap batteries? dunno about cars, but a great way to make undependable renewables (solar, wind) more viable for the average homeowner.

also dunno how much of a fan I am of standard electric power for cars (living near a potential dam site i don't see hydro as that 'green') but the tech is interesting. 135 hp, but on ASAP, would be fun in that little car - i'd see myself coming out of more than a few corners backwards until I got the hang of it.