Gruter Gut's latest creation, the GG Quad, conquers the road on 16" alloys, and a BMW 1100cc-powered hybrid puting out 90 ponies to the ground via a six-speed gearbox. Top end for the crazy quad is about 106 mph-- a total that doesn't sound all that impressive, but is likely scary enough in real-life. The design isn't the only 'insane' thing about the GG Quad. The $43,000 asking price is barking mad too!