Hayabusa engine......

[justasquid]

The smart car thing could be done and does look like fun as moreHP suggested,

Or This:
http://www.youtube.com/watch?v=fUH8S5wvK0M

Personally, I would build something for the offroad like a mini sandrail. I know thats not what your after, but thats much power on the sand would be awesome.



Or sell the engine and have some money to dump into your car