Aston Martin Lagonda Limited is a British manufacturer of luxury sports cars, based in Gaydon, Warwickshire. The company name is derived from the name of one of the company's founders, Lionel Martin, and from the Aston Hill speed hillclimb near Aston Clinton in Buckinghamshire. From 1994 until 2007 Aston Martin was part of the Ford Motor Company, becoming part of the company's Premier Automotive Group in 2000. On 12 March 2007, it was purchased for £479 million by a joint venture company, headed by David Richards and co-owned by Investment Dar and Adeem Investment of Kuwait and English businessman John Sinders.