Jaguar D-Type

Like the C, it was a factory-built racer, only this came with added AWESOME. See the giant stabiliser? That was designed by Malcolm Sayer to keep the car steady on the Mulsanne straight at Le Mans - he joined Jaguar after working at the Bristol Aeroplane Company, so it works and everything.

They were initially race-only machines, but after Jaguar withdrew from racing they offered the remaining, unfinished chassis as the roadgoing XKSS. To service public highway legislation Jag added an extra seat, another door, a full-width windscreen and a slightly rubbish folding roof. Steve McQueen bought one. Which makes it brilliant.