The Triumph TR6 was built as a desperately needed update of Triumph’s convertible sports car line. Its predecessor, the TR5 was largely a stopgap model, utilizing the same chassis and drivetrain as was used in the TR6, but with the earlier TR4 body. While the TR6 was in the planning stages, Triumph was being absorbed under the British Leyland brand. As money was tight, rather than come up with a whole new design, Triumph opted to hire a designer to refresh the Michelotti designed body of the previous generations. As Michelotti was not available, they opted to use Karmann, from Germany to oversee the redesign, with the instructions to change as little as possible while updating the look. The underlying structure of the TR6 is nearly identical to the TR4 and TR5 and the doors in fact interchange. Karmann changed the front nose and hood line of the car, raising the hood line to eliminate the carburettor bump and moving the headlights outboard, as well as squaring off the back end with a flatter boot lid and a kamm tail, painted black finishing the back end. Mechanically, nothing really changed from the TR5 and the US model TR250, with the US model retaining carburettors while all other markets received the mechanically fuel injected cars. The car debuted in 1969, being produced until 1976 when it was replaced by the wedge shaped TR7, marking a significant departure in design for Triumph. As with almost all cars of the 1970s, the TR6 suffered from US emissions laws leading to a steady decrease in engine output over the course of production to meet emissions guidelines.
This TR6 is a driver level example, restored by a previous owner and is mechanically very sound. When I purchased the car it had the original Zenith Stromberg carburettors replaced with downdraft Webers which were poorly suited to this engine. I opted to replace them again, this time with two SU carburettors, which I generally prefer. The TR6’s engine is very well suited to the car and acceleration and power are very linear and smooth. The suspension is soft and compliant giving a very good ride, and in general the car handles well, though the design of the rear independent suspension, which utilizes semi-trailing arms with sliding splined axle shafts to allow for movement, sometimes binds when accelerating out of a corner, creating some odd handing characteristics, but nothing overly disturbing. It also has a tendency to lean more towards understeer in its handling. Because of these issues, I’d say the car doesn’t hold up as well as a pure sports car, but the comfortable ride and excellent power makes it a fantastic touring car.