The Dodge Tomahawk is a Viper V-10 based motorcycle, a 500 horsepower engine with four wheels beneath it. The engine breathes through twin throttle bodies mounted right up front. (That's what the two round things above the front tires are).
Chrysler sold nine replicas through Neiman Marcus, for up to $555,000 each. The motorcycles cannot be legally driven on public roads. A Chrysler spokesman told they were meant as rolling sculptures, but they can probably still be driven on private roads.
The Dodge Tomahawk can reach 60 miles an hour in about 2.5 seconds, and has a theoretical top speed of nearly 400 mph. Each pair of wheels is separated by a few inches and each wheel has an independent suspension. Bernhard said four wheels were necessary to handle the power from the engine.