Lamborghini planned a production run of 15 Reventón Roadsters. The open-top version was unveiled at the 2009 Frankfurt Motor Show as an exceptionally limited derivative of the Reventón coupé.
The Roadster used the 6.5-litre V12 and all-wheel-drive architecture related to the Murciélago LP 670-4 SuperVeloce. Removing the roof required structural reinforcement, adding about 25 kilograms, and the car gained deployable roll hoops designed to protect occupants in a rollover. Its engine produced 670 PS, more than the coupé’s output.
The Roadster’s planned total is often confused with the Reventón coupé allocation. Lamborghini announced 20 coupés for customers, plus one additional car for its museum, while the Roadster was limited to 15 examples. Each coupé carried a numbered plaque showing its position in the 20-car customer sequence.
The Reventón was styled to evoke stealth aircraft, with sharply faceted bodywork and a military-inspired cockpit. Its name came from a fighting bull, continuing Lamborghini’s long association with bullfighting names. Because of the tiny production run and high demand, the Roadster’s price rose dramatically above its original estimate.