The Triumph GT6 is a sporty 2-door coupe based on the Triumph Spitfire convertible produced in 1966-1973. It had rear-wheel drive and a engine located in the front.

The Triumph GT6 Mk III was introduced in 1970 as the last facelift of the GT6. The entire body was redesigned. The car had recessed door handles and a smoother front end. Before production ended in 1973, the rear suspension was changed. A brake servo was also added and the seats were changed from vinyl to cloth.

The car was powered by a 2-litre I6 engine with 104 hp (78 kW), which was mated to a 4-speed manual gearbox. It could reach a top speed of 180 km/h and accelerate from 0 to 100 km/h in about 10.5 seconds. A total of 13 042 examples of the Mk III were produced.