The Triumph TR7 was a sports car manufactured from September 1974 to October 1981 by the Triumph Motor Company (which was part of British Leyland) in the United Kingdom. It was initially produced at the Speke, Liverpool factory, moving to Canley, Coventry in 1978 and then finally to the Rover plant in Solihull in 1980. The car was launched in the United States in January 1975, with its UK home market debut in May 1976. The UK launch was delayed at least twice because of high demand for the vehicle in the US.
The car was characterized by its "wedge" shape, which was commonly advertised as: "The Shape of Things to Come," and by a curved line in the bodywork sweeping down from the door area to the rear of the car. The design was penned by Harris Mann who also designed the wedge-shaped Leyland Princess. The car had an overall length of 160 inches (406 cm), width of 66 inches (168 cm), wheelbase of 85 inches (216 cm) and height of 49.5 inches (126 cm). The coupé had a kerbside weight of 2205 pounds (1000 kg). During development, the TR7 was referred to by the code name "Bullet".
Power was provided by a 105 bhp (78 kW) (92 bhp (69 kW) in the North American version) 1998 cc 8-valve four-cylinder engine which shared the same basic design as the Triumph Dolomite Sprint engine mounted in-line at the front of the car. There were plans to directly use the Sprint engine 127 bhp (95 kW) in the TR7 and at least 25 pre-production cars were made in 1977 using the 1978 model year bodyshell. This model was getting ready for full production until the closure of the Speke Plant. These cars, of which several still exist in the UK, can be identified by a different chassis number to the production 8-valve model. Drive was to the rear wheels via a four-speed gearbox initially with optional five-speed manual gearbox or three-speed automatic from 1976. The front independent suspension used coil spring and damper struts and lower single link at the front, and at the rear was a four link system again with coil springs. There were front and rear anti roll bars, with disc brakes at the front and drums at the rear.
Various British Leyland vehicles were driven by the lead characters in the British secret agent television series The New Avengers produced between 1976 and 1977. Amongst these was a yellow TR7 hardtop driven by the character Purdey. The car was immortalised as a children's Dinky Toy and Revell construction kit.
For export to the US market, Triumph created a more powerful Triumph TR8 model in 1977/78, this was a TR7 with a 135 bhp (101 kW) 3.5 L Rover V8 engine. While some genuine TR8s stayed in Britain, these examples are exceedingly rare. Most TR8s went to the US, where they did not fare well due to both
Triumph's poor build quality at the time and the unusually strong pound which peaked at around $2.40 by 1980, making Triumphs fairly expensive compared to competitors.
In early 1979, Triumph belatedly introduced a convertible version, called the TR7 Drophead, which first went on sale in the US. The British market received it in early 1980. It's often forgotten that the convertible version of the original Harris Mann design was done by Michelotti. In the UK in 1980, the TR7 Drophead sold for £5,050, whilst the Coupé sold for £5,230.
British Leyland ran a team of TR7s in rally competitions from 1976 to 1980. These cars used the 16 valve Dolomite Sprint or Rover V8 engine and had disc brakes on all four wheels. They were reasonably successful on tarmac events but did not do so well on off road sections.
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