The Bugatti Veyron EB 16.4 is a mid-engined supercar, designed and developed by the Volkswagen Group and manufactured in Molsheim, France, by Bugatti Automobiles S.A.S. The original version had a top speed of 407.12 km/h. It was named Car of the Decade by the BBC television programme Top Gear. The standard Bugatti Veyron also won Top Gear's Best Car Driven All Year award in 2005. The current Super Sport version of the Veyron is recognized by Guinness World Records as the fastest street-legal production car in the world, with a top speed of 431.072 km/h, and the roadster Veyron Grand Sport Vitesse version is the fastest roadster in the world, reaching an averaged top speed of 408.84 km/h in a test on 6 April 2013. The Veyron's chief designer was Hartmut Warkuss, and the exterior was designed by Jozef Kabaň of Volkswagen, with much of the engineering work being conducted under the guidance of engineering chief Wolfgang Schreiber. Several special variants have been produced. In December 2010, Bugatti began offering prospective buyers the ability to customize exterior and interiors colours by using the Veyron 16.4 Configurator application on the marque's official website.