Meet Angus McPhail's Jade Warrior. You ride it lying flat on your stomach, your face staring past a tire from a scooter as you rocket up to 200 miles per hour. Like you're riding a technicolor bullet.
The engine is a four-cylinder of unknown origin, built in partnership with Cosworth, using some of their technology from Formula Two and Formula One. And it's supercharged. And it used no nitromethane. And it still made an estimated 400-500 horsepower. Holding the bike to the ground were ground effects designed by McPhail himself.
Back when the Jade Warrior was running in Belgium back in 1985, it could do the quarter mile in 7.92 and it could cross the line at 189mph. It is sheer, utter madness.
(Hat tip to gin-n-joose!)