The SSC Ultimate Aero is an American-built mid-engine supercar by Shelby SuperCars. The higher-performance limited production version previously held the Guinness Book of World Records record for being the fastest production car in the world (succeeded by the 2010 Bugatti Veyron Super Sport), with a recorded speed of 412.29 km/h (256.19 mph). This speed was achieved during tests on September 13, 2007 West Richland, Washington, United States and verified by Guinness World Records on October 9, 2007. This speed however does not reflect the SSC Ultimate Aero TT's full potential. SSC estimates that the newer, more powerful and lighter weight 2009 Ultimate Aero TT is capable of a top speed of over 270 mph (430 km/h). The SSC Ultimate Aero does not have electronic aids such as ABS brakes or traction control, as according to Jerod Shelby; "Early design philosophy on the car was to make it a drivers car. I wanted a car that you not only throttled with your right foot but at times you could steer with your right foot."