I think these bikes (can am ones) are hideous. they got a mostly negative review at the local hangoutover here.

 

I like this one... http://www.trirodmotorcycles.com/

 

I found the specs on the websites:
Can-Am 998cc Rotax motor 106 hp
T-Rex 1400cc Kawasaki 187 rear wheel hp

I would like to ride one just for the hell of it, especially that T-Rex.