1955 Jaguar D-Type – D-Types, while a descendant of the earlier C-Type, were bred purely for Le Man. A big fin was mounted at the rear for stability and it has an aluminum monocoque chassis. As a result it had a completely different look compared to other cars racing at the time. The engine is a 3.8-liter straight-six with 300 horsepower. Production began in 1954 with a debut at the ’54 24 Hours of Le Mans. Production continued through 1957 with road-going versions (called XK-SS) built as well.