Used to be (still might be) a motorcycle fanatic. A buddy of mine owned a T-Rex - if memory serves correct it was built in Canada. They use tubular frame and some nice in line 4 cylinder bike motors. HP to weight ratio is up there and the handling is incredible. Last I looked they were running up in price pretty good, more than double the cost from what he paid over a 3-4 year span. I beleive they have US and European dealers now. Check this link;
If you have the extra dosh layin around I highly suggest one of these. I had a Ducati 916 at the time and couldn't come close to hangin in the twisities or during track days.