top of my list,
The Dubwieser MK1
Full Audi Quatto Sport group B Running gear/Engine


http://www.youtube.com/watch?v=WiT-t...eature=related

or this
MK1 with a TVR engine?!?!?

http://www.youtube.com/watch?v=dVSTY...eature=related


or
MK1 RWD with a Hayabusa turbo lump!!!

http://www.youtube.com/watch?v=ZP8fk...eature=related