with an "over 500bhp" 2.4-litre, 40-valve supercharged V8 and a reduced body weight of , boasts almost per tonne (initial announced specifications were and , but the RS website specifies "in excess of 500bhp," and or ; the math may or may not achieve "over per tonne"). The eight cars, costing £115,000, sold out and only eight will be produced to celebrate more than 50 years in production. Two days' of mandatory "driver training" are included in the price of the car. Kit build All of the 2008 model line-up is available as a 'CKD' complete kit for build by the owner, with the exception of CSR models. Engines Historically, engines have been supplied by Ford, specifically Ford Kent engines or Cosworth-derived race-prepared BDA/R units, enlarged to 1.7 litres and generating 150–170 bhp. In the early '90s, Caterham started using powerplants from other sources, with the least expensive models using 1.4-litre K series engines from MG Rover for the base model, and Vauxhall engines including full race versions of the 16 valve 2.0XE "red top" as fitted to 1990 Vauxhall Works Touring Cars. Rover engines span a power output of 110–250 bhp in the R500 Evolution, Vauxhall engines to in some factory built versions of the car. A Caterham JPE (Jonathan Palmer Evolution) briefly held the world record for production car 0–60 mph times (at 3.4 seconds) until it was bettered by the $1.2M McLaren F1(Nowadays, you can buy one for about 18-20 million dollars). The many aftermarket tuning companies for these cars have also offered the Ford Zetec, Honda Fireblade, Honda Blackbird, Suzuki Hayabusa and even the Mazda Rotary engine. Since 2017, several cars have been built with the direct injection turbo Ford Ecoboost 1.6.litre version of this engine which with a hybrid turbo provides more horsepower than Caterham's own supercharged Duratec, and more torque than any factory car including the V8 Levante. In 2001, Caterham designated MG Rover the sole engine supplier for factory-built Sevens, with Ford Zetec, Honda Fireblade, Yamaha R1 and Suzuki Hayabusa engines still available for kit assembly. The Rover engines were based on the K series and carried the 'Xpower' branding. However, the partnership evidently came to an end with the collapse of MG Rover, with the 2005 model introducing a Ford Duratec engine. Typical powerplant output ranges from to over , depending on specifications and modifications. The gearbox is either the classic Ford