The Jaguar XKSS is a road-going version of the Jaguar D-Type racing car, initially built in 1957. Only 16 were built and sold at the time. Nine chassis were destroyed in a factory fire in 1957 before they could be completed. In 2016 Jaguar announced that a small production run of nine "continuation" XKSS reproductions would be hand-built to the original specifications to complete the originally scheduled run of 25.

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.