I love it love it!

http://www.ebay.co.uk/itm/bike-powered-c...=item3f1b4dfecd

thats got to be some fun to drive .

That looks like a mad load of fun for little money.
My misses car has just been writen off maybe i could.......

She just said No which was the nice word i heard....

Would it be quick though? I guess the lump is probably 150hp... The car would weigh alot less than standard with lightweight engine, 650-700kg all in?

There's probably not much in it in terms of weight. The standard engine/box probably weigh the same as the new engine and drive train arrangement. I reckon the extra speed will come from the ability to rev and stay in gear longer, plus the extra power .

I think though, if you want a car like this you'd have to build it yourself to get the full experience.