The SSC Aero is an American-built mid-engine sports car by Shelby Super Cars. Its higher-performance limited production version, the SSC Ultimate Aero TT, is currently the fastest production car in the world, with a fastest recorded speed of 413 km/h (257 mph). This speed was reportedly achieved during tests on September 13, 2007 in West Richland, Washington, United States and verified by Guinness World Records on October 9, 2007.
The Aero and the Shelby Super Cars company are the brainchildren of Jerod Shelby, who spent over seven years designing the car. The basic Aero model is no longer produced, while, as of 2008, the Ultimate Aero costs about 620,000 dollars(Wikipedia)