The 599XX is a car designed for track use only and is not street legal, based on 599 GTB. The rev. limiter is raised to 9000 rpm, with the engine rated for 730 PS (540 kW; 720 hp) at 9000 rpm. Weight is reduced by reducing the weight of the engine unit components, the use of composite materials, and the use of carbon-fiber body parts and brake pads. A new gearbox shift strategy is introduced to cut overall gear change time to 60 ms. Aerodynamics were retuned to give more downforce (280 kg (617 lb) at 200 km/h, 630 kg (1,389 lb) at 300 km/h). The car also includes 29/67 R19 front and 31/71 R19 rear tyres with 19 × 11J wheel rims at the front and 19 × 12J at the rear. The car was unveiled at the 2009 Geneva Auto Show.

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