Lamborghini Aventador J

After two images were released two days ahead of the 2012 Geneva Motor Show, Lamborghini has officially debuted the Aventador J, but not in concept form as previously suggested. The J is a fully functional sports car ready for road use. The bad news is that this will just be a one-off model that will ride off into the sunset with its new owner at the end of the Geneva Auto Show. "There is only one of them, no prototypes and no others for the Lamborghini Museum. The buyer can look forward to a truly unique, street-legal work of art."

The Aventador J is not the first one-off model offered by Lamborghini. This tradition began back in the 1970s with the unveiling of the one-off Jota - a Lamborghini Miura with improved performance and virtually redesigned in every detail. The car takes its "J" letter from the sporting rules of the FIA world motorsport organization: "Appendix J" defines the technical specification of race cars in the various classes.

The Aventador J’s exterior and interior meld into each other in an attempt to obtain a two-seat sport-bike effect. Elements like the climate control and nav systems have been removed in order to make the car lighter. High quality lightweight materials also help in the speed department. Carbon fiber has been used for the car’s bumpers, the front air scoop, the winglets, and for that huge rear diffuser. Inside, the sports car boasts of seats covered in a new carbon fiber fabric called "Carbonskin". All of these improvements helped bring down the total weight of the vehicle, plus fluids, to 1575Kg.

Just like the standard Aventador, the one-off J version will be powered by a 6.5-liter V12 engine that is capable of delivering a total of 700 HP. Top speed goes up to an impressive 186 mph - a little less than the standard Aventador, but very respectable given it misses a roof.