Hennessey Performance Engineering is an American tuning house specializing in modifying sports cars from several brands including Ferrari, Porsche, McLaren, Chevrolet, Dodge, Cadillac, Lotus, Jeep, Ford, GMC, Lincoln and Lexus. Established in 1991 by John Hennessey, their main facility is located 45 minutes west of Houston, Texas. The firm focuses on mechanical component modification for creating high-powered cars. Besides performance automobiles, they also tune pickup trucks and sport utility vehicles such as Ford Raptors and Jeep Grand Cherokees. They also work on luxury cars such as Bentleys and muscle cars like the Dodge Charger and Challenger.