CCXR
The CCXR is a more "environmentally friendly" version of the CCX, powered by the same engine, but converted to use E85 and E100 ethanol fuel, as well as standard 98 octane petrol.[12] The CCXR required modified fuel injectors, upgraded fuel lines and piston rings, and a higher boost setting on the superchargers. In standard form, bodywork of the CCXR features heavily optimized aerodynamics, along with optional diffusers to enhance airflow, including an optional front splitter with an aerodynamic nolder.[13][14] When run on ethanol, the power increases to 1018 PS at 7000 rpm and 1060 Nm of torque at 5600 rpm. This is a direct result of the cooling properties of ethanol in the engine's combustion chambers along with the added boost, made possible by ethanol's higher octane rating when compared to gasoline.[12][15] Due to the lower specific energy content of ethanol, the CCXR burns slightly more fuel than the CCX with a combined fuel consumption of 22 L/100 km under the EU cycle.
CCX Edition, CCXR Edition, CCXR Special Edition
At the 2008 Geneva Motor Show, Koenigsegg presented two special edition models, the CCX Edition and the CCXR Edition, both fitted with a remapped, 4.8 L twin-supercharged V8 engine and limited to 2 and 4 units respectively.[16] The modifications to the engine increase the power of the CCX Edition to 900 PS on normal gasoline and 940 Nm of torque while the CCXR Edition ratings remained unchanged over the CCXR.
The Edition models are more track oriented compared to the standard models, being equipped with stiffer springs and anti-roll bars, new dampers and a lowered chassis, a bare carbon body, unique 11-spoke aluminium wheels with a unique rear wing, and a larger front splitter and side winglets, all of which make the car capable of producing 350 kg of downforce at 250 kph.[17][18] The interior is also reworked and features; colour matched leather carpets, Koenigsegg Edition side step plates and Edition chronograph instrument cluster. All other extra equipment for the Koenigsegg CCX and CCXR Edition comes as standard which include optional carbon fibre wheels, a rearview camera, Satnav or Bluetooth, amplifiers, and an exhaust system made entirely from inconel.
Later, Koenigsegg also built two CCXR Special Edition cars which when compared to the old CCXR Edition had equipped with the double F1 wing, a revised aero package with a unique and larger front splitter and side winglets, wheel vents on top of the body, as well as Koenigsegg's first F1 Paddleshift system.
CCXR Trevita
The CCXR Trevita is a limited edition of the Koenigsegg CCXR featuring a diamond weave carbon fibre finish. Trevita is an abbreviation in Swedish and translates into "three whites".[20] The Koenigsegg Proprietary Diamond Weave, fully developed by Koenigsegg, is a new and unique method to manufacture the carbon fibre used for the CCXR Trevita. By utilising this new and unique method, Koenigsegg managed to coat the fibres with a diamond finish. The fibre treatment is conducted carefully in small quantities, prior to further processing the pre-production material.[21]
Initially, three CCXR Trevitas were planned to be produced, however, because of the complexity to make the special diamond weave carbon-fibre, only 2 were ever made, making it one of the rarest vehicles manufactured by Koenigsegg. Both cars featured the Koenigsegg Shimmering Diamond Weave bodywork, twin-deck carbon fibre rear wing, inconel exhaust system, carbon ceramic brakes with ABS, airbags, F1 paddle-shift gearbox, chrono instrument cluster, infotainment system, tire monitoring system and a hydraulic lifting system.[22] The Trevita is also one of the most expensive sports cars, costing US$4.8 million.[23]
