The Lamborghini Reventón (Spanish pronunciation: [reβenˈton] ) is a mid-engine sports car that debuted at the 2007 Frankfurt Motor Show. It was the most expensive Lamborghini road car until the Lamborghini Sesto Elemento was launched, costing ~$1.5 million, or ~£840,000.[1] Its top speed was recorded while testing in the UAE at 221 miles per hour (355.7 km/h). The official press release stated that only 20 vehicles would be sold to the public,[2] with one additional car (marked as 00/20) produced for the Lamborghini museum.[3] Each car is stamped with its number in the sequence of 20 between the driver's and passenger's seats.