The bike below was submitted by Endo and is just one of many fantastic bikes already added. Why not go to the forum and add your own.
Excerpt from thread:
Looks like a fairly normal, if stretched, racer, but under the plastic is a two-speed automatic Rolls Royce Allison jet turbine rated to 225mph. So far, so good, but Leno actually rides the thing around on the roads on a fairly regular basis. He did say it got quite expensive - mainly in compensating car drivers whose bumpers melted in the jet backwash!

Check out the size of that Exhaust!