owns a test track facility in Ehra-Lessien, some 18 kilometres north of its Wolfsburg factory. The facility was built during the Cold War. The location was chosen because, at the time, it was in a no-fly zone only 10 kilometres west of the border between East Germany and West Germany, and thus secret prototypes could be tested out of sight of potential rivals. The track is currently used by all Volkswagen Group subsidiaries and marques, such as Audi, Lamborghini, Bentley, Bugatti, SEAT, Škoda, and Porsche. The facility features of private tarmac, which includes a large variety of road surfaces and curves, used as test tracks to evaluate new and prototype vehicles. More significantly, there is a high speedcircuit with a straight approximately long. Although the straight portion of the track is perfectly flat and level for the entire length, when standing at one end of the straight one cannot see the far end due to the curvature of the Earth. Banked corners at both ends of the circuit allow for a high entry and exit speed to and from the straight, and to increase average speed during the lap. The straight is especially useful for determining vehicle top speed, and is one of the few places on earth that the Bugatti Veyron or the McLaren F1 can reach their top speed. Notably, the top speed of the Bugatti Veyron and the McLaren F1 were recorded along this straight. In episode 2 of Season 9, aired on 4 February 2007 on BBC Two's Top Gear, presenter James May reached in a Bugatti Veyron. In July 2010 a Bugatti Veyron Super Sport with, reached while driven by James May, back at Ehra-Lessien again. However shortly after this, while being driven by Bugatti test driverPierre Henri Raphanel, the vehicle recorded the production car world speed record at an average of . The facility also appeared on National Geographic Channel's Man-Made, in episodes about the Bugatti Veyron and Chiron. On 2 August 2019, Bugatti used a specially modified Chiron and broke the top speed record for a production car, reaching. The top speed was set by Andy Wallace and verified by the TUV. Reportedly, Bugatti had spent the prior twelve months preparing for this new high speed record run. This high speed run is demonstrated on the Top Gear YouTube channel, on a video, posted on 2 September 2019.
