Pretty cool idea I think. They actually have a decent kit. 100/180 miles. 2.5 hrs to charge. 300hp/tq. Electric. 0-60mph in under 6. Can't find much too much to complain about...
The price is what I would expect, but I would rather dump 15k on a supercharger and burn petrol.
I'd bet they could capture a big market if they play their cards right, the electric motor cars are just starting to enter teh world though.