Triumph GT 6
The GT6 project started in mid-60s when Triumph realized they needed a coupe version of their popular roadster. However, just putting the roof on the Spitfire wouldn’t do the trick. They needed to extensively reengineer the car. Also, they needed a more powerful engine in for the chassis to cope with the added weight of the coupe body style.
So, the Triumph engineers installed a 2.0-liter six-cylinder engine with 106 HP. That provided the GT6 with more power and performance than the similar Spitfire. They officially presented the GT6 in 1966 and discontinued it in 1973 after they built around 45,000 of them. The GT6 was never as popular as the Spitfire, but it was a cool-looking alternative to the other sport coupes on the market.