management team led by Ansar Ali (CEO) and Mark Edwards (COO). In June 2012 Ansar Ali announced he was to leave Caterham Cars and Graham Mcdonald (the company's former CFO) became the new CEO. Construction As with its Lotus Seven precursors, Caterhams are constructed of aluminium sheet attached to a tubular steel chassis. Nose cone 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 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 usage and is instead recognised by driving enthusiasts for its focus on driving enjoyment, making it an ideal track/race car or 'Sunday' car. Kit format Chapman and Lotus helped to pioneer the British kit car industry. The Lotus Seven was offered in kit form to allow buyers to avoid new car tax in the UK. Subsequently, Caterham continued offering cars in 'complete knock down' (CKD) kit form as the tradition of hand building your own Seven was well established amongst enthusiasts. Today, all Caterham Sevens are still offered in kit form in the UK except the CSR (Series 6) model. Modern Caterham kits differ from the majority of kit cars as all parts are supplied ready to assemble, not requiring a donor car, fabrication or any special skills. International Although the Seven has always been popular with enthusiasts outside of the UK marketplace, export of the Seven to other markets has increasingly been limited by homologation, safety and emissions regulations in the modern era. As a result, the chassis/engine combinations, specifications, pricing and kit-form availability vary widely between countries. In the past in the United States Caterhams were sold as kits only, lacking some modern safety features required of manufacturers, but which are not required for individually assembled vehicles. Buyers could either choose to construct the cars themselves or pay their regional dealers or local builders to assemble them. Typically the engine and transmission are sourced separately as a unit – often from Caterham – but all other components (including frame,