The Dodge Tomahawk is a concept motorcycle that was unveiled in 2003. It features a massive 8.3-liter, V10 engine borrowed from the Dodge Viper sports car. The engine produces an astounding 500 horsepower, making it an incredibly powerful motorcycle. It is primarily a showpiece rather than a practical motorcycle for regular use. It's worth mentioning that the motorcycle industry is continually evolving, and new models may have been released since then that offer even higher cylinder capacities.