lamborghini reventon
that debuted at the 2007 Frankfurt Motor Show. It is the most powerful and expensive Lamborghini road car to date, costing one million euros (~US$1.31 million, or ~£840,000). The official press release stated that only 20 vehicles would be released to the public, with one additional car (marked as 0/20) produced for the Lamborghini Museum. Although early rumors indicated the total number would actually be 100, each Reventón is clearly stamped with its number in the sequence of 20 between the driver's and passenger's seats.
Despite the exterior being new, almost all the mechanical elements (including the engine) are sourced directly from the Murciélago LP640. According to the official press release, the Reventón exterior styling was inspired by the "the fastest airplanes" To emphasize this, Lamborghini
source : wikipedia.com