http://www.turbomagazine.com/tech/04..._supercharger/

The Thomas Knight electric supercharger is the only legit electric supercharger out there. Even that being said, I would rather prefer a standard supercharger or turbo kit. The way it works is just not what I want in a car. It might be ok for drag racing, but for AutoX or road racing or anything that requires constant power, its not worth it.

Cool design though.