Roush is an American automotive engineering company founded by Jack Roush in 1976. It specializes in high-performance vehicles, particularly in the areas of Ford performance parts and racing. Roush is well-known for its modifications to Ford Mustangs and Ford F-150s, enhancing their power, handling, and overall performance. In addition to vehicle modifications, Roush is heavily involved in motorsports, particularly in NASCAR and NHRA. The company has a reputation for developing competitive race cars and has achieved numerous victories in various racing series. Roush also offers a range of aftermarket parts and accessories for car enthusiasts.