Caterham Cars is a manufacturer of specialist lightweight sports cars established in Caterham, Surrey, UK, with their headquarters in Crawley, Sussex, UK. Their current model, the Caterham 7 (or Seven), is a direct evolution of the Series 3 Lotus Seven designed by Colin Chapman and originally launched in 1973.
As with its Lotus Seven precursors, Caterhams are constructed of aluminium sheet attached to a tubular steel chassis. Nosecone and wings are either GRP or carbon fibre depending on specification. All Sevens are front engined with rear-wheel drive and two seats. Their extremely high performance is achieved through light weight (less than 500 kg (1,102 lb) on some versions) rather than particularly powerful engines. As well as a lightweight chassis and bodywork, Caterham Sevens achieve their very low mass through their lack of comfort and safety oriented features, such as a fixed roof, doors, radio, air-conditioning, airbags, traction/stability control, ABS, satellite navigation or cruise control. As a result, the Seven is somewhat limited in its practicality for everyday use and is, instead, recognised by driving enthusiasts for its focus on driving enjoyment, making it an ideal track/race car or 'Sunday' car.
In September 2013, Caterham made a car called the 620R. It was based on the R500, but was supercharged. This increased the power output to 310 brake horsepower at 7,700 rpm and the torque to 219 lb.ft at 7,350 rpm. It also reduced the 0-60 mph time to 2.79 seconds. It has a power-weight ratio of 568 bhp-per-tonne and a top speed of 155 mph.
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