Hennessey Performance is an aftermarket car tuning based in Texas, USA. The company specializes in testing, tuning, and upgrades for many American sports cars and super cars such as the Ford GT, Chevrolet Corvette, and Camaro. Hennessey Performance has also built the Venom GT based on a Lotus that is faster than a Bugatti Veyron. Hennessey Performance was founded in 1991 by John Hennessey. The aftermarket company also does high-speed competitions with a number of company and customer vehicles.