Triumph TR6: the last of the hairy-chested roadsters (1968-1976) The Triumph TR6 was the best-selling TR and the last of the traditional separate-chassis British sports cars, a muscular Karmann-restyled roadster with a 2.5-litre straight-six and, on home-market cars, Lucas fuel injection. A guide to the PI-versus-carburettor cars, the CP and CR distinction, what to look for, and what they are worth.
