Hennessey Performance Engineering, more commonly known as simply Hennessey, is an American automotive company that was founded in 1991. For the majority of its life, Hennessey has focused on tuning and creating high performance versions of numerous American models, including the Dodge Viper, Ford Mustang, and Chevrolet Camaro. More recently, the company has worked on creating its own bespoke models such as the Venom GT and the Venom F5.