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, co-owned by Investment Dar and Adeem Investment of Kuwait and English businessman John Sinders. Ford... retained a US$77 million stake in Aston Martin, valuing the company at US$925 million. Aston Martin was founded in 1913 by Lionel Martin and Robert Bamford. The two had joined forces as Bamford & Martin the previous year to sell cars made by Singer from premises in Callow Street, London where they also serviced GWK and Calthorpe vehicles. Martin raced specials at Aston Hill near Aston Clinton, and the pair decided to make their own vehicles.