The Ferrari 599XX is a non-road legal (track only) version of the Ferrari 599 GTB Fiorano, which is the predecessor of the Ferrari F12berlinetta. The replacement of the Ferrari 599XX could be the Ferrari FXX-K being introduced in 2015.
The Ferrari 599XX is a track-only supercar, built by Ferrari essentially as a “rolling laboratory” for developing future road car technology and is based on the 599 GTB. The car was unveiled at the 2009 Geneva Auto Show. The car's rev limiter is raised to 9,000 rpm, with the 6.0 L (5,999 cc) Tipo F140 C naturally aspirated V12 engine rated for 730 PS (540 kW; 720 hp) at 9,000 rpm. Weight is reduced by cutting the weight of the engine unit components, and use of composites and carbon-fibre body parts, carbon-fibre 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 124 mph, 630 kg (1,389 lb) at 186 mph). The car also includes 29/67 R19 front and 31/71 R19 rear tires with 19 x 11J wheel rims at the front and 19 x 12J at the rear.
The Ferrari 599XX is a Tier 4 vehicle. It requires 365 stars to unlock and costs 1,500,000 Cash.
The Ferrari 599XX is the second Ferrari vehicle not part of the original 47 car roster, with the first being the Ferrari F430. The Ferrari 599XX is a high-end Class B vehicle, having a starting rank of 1292 that extends up to 1490 with regular upgrades, and with Pro Kits, it can reach 1611. A Tuning Kit adds a bonus 42 points to this car's rank.
The Ferrari 599XX has a good acceleration, albeit not one of the best in Class B. In maxed+pro form however, it absolutely pulverizes opponents with its high top speed, decent nitro, and very strong handling. The 599XX has a rather high top speed, rivaling those of the Ford Shelby GT500 and Lamborghini Gallardo LP 560-4 2013. This gives the 599XX an advantage on long tracks, such as Iceland or Tokyo. The 599XX, being a track-tuned car, is capable of handling corners well, another advantage on technical tracks like Monaco or Dubai. While the 599XX has a decent nitro boost speed, it does not last quite long. Overall, the 599XX is a formidable Class B choice, albeit rather pricey.