James Duncan Hamilton was a British racing driver. He was known for his colourful and extroverted personality. After fighting in the Second World War, he took up motorsport. Although adept in single-seaters, he was more successful in sportscars, winning the 1953 24 Hours of Le Mans, two Coupe de Paris events, and the 12 heures internationals Reims race in 1956. He retired in 1958 and ran a garage in Bagshot, Surrey for many years. He died of lung cancer in 1994.

The Jaguar D-Type is a sports racing car that was produced by Jaguar Cars Ltd. between 1954 and 1957. Designed specifically to win the Le Mans 24-hour race, it shared the straight-6 XK engine and many mechanical components with its C-Type predecessor. Its structure, however, was radically different, with innovative monocoque construction and slippery aerodynamics that integrated aviation technology, including in some examples a distinctive vertical stabilizer.