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Triumph TR5
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Triumph TR5
The Triumph TR5 is a sports car built by the Triumph Motor Company in Coventry, England. The Triumph TR250 is a version of the car built for the North American market. Production ran for 14 months, from August 1967 to September 1968.
With the release of the TR4 in 1961, Triumph left behind the sidescreen era cars for a model with more contemporary full-width styling, and the arrival of the TR4A in 1965 brought a revised chassis and independent rear suspension. These changes were accompanied by steady increases in weight, while horsepower only rose nominally. To address this creeping performance deficit, and anticipating that the TR4's Standard wet liner inline-four engine could not be made to meet more stringent American emmission regulations coming into effect in 1968, Triumph began development of a successor to the TR4.
Triumph began testing a six-cylinder TR as early as 1962. Even before the TR4A was available in showrooms, Triumph started the "Wasp" programme to develop its successor. At least seven Wasp cars were built for testing and development. Chassis X747 was completed in February 1965; X748 was ready in February 1966; X753, X754, and X755 were registered for road use in 1967; prototypes X760 and X761 were also built in 1967.
Triumph selected a British-made fuel injection system to handle the car's air/fuel mixture, but was unable to make the system compliant with new American emission standards. In addition, American Triumph dealers objected to the injected engine's price premium. These issues led Triumph to develop two versions of the car to be sold under different names in different markets—the carburetted TR250 for the North American market, and the fuel-injected TR5 for the rest of the world.
American dealers had previously balked at the cost of the TR4A's independent rear suspension (IRS), and convinced Triumph to sell a less expensive version of the car with a live rear axle on semi-elliptic springs in the US. As no objections were raised to the IRS in the TR5, no beam axle version of it was developed.
Production of the TR4A ended in July 1964, with production of the TR250 beginning immediately afterwards, and TR5 production starting a short time later.
The TR5's open two-seater body is nearly indistinguishable from the Michelotti-designed TR4 that preceded it. Externally, there are a new grille, side trim, rear marker lights, and badges. Standard wheels are steel with Rostyle-inspired covers, with wire wheels optional. On the interior, padded spokes on the steering wheel and updated knobs and switches signal compliance with new American safety standards. The dash was still of wood, but now with a matte finish.
The previous cars' optional hard top configuration continued to be offered. This weather protection system comprised a fixed, rigid rear section that included a glass back light, and a removable section over the driver and passenger's heads. The removable section came in two types: a rigid panel made of steel or fibreglass, and a flexible one made of fabric, called a "surrey top".
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Triumph TR5
The Triumph TR5 is a sports car built by the Triumph Motor Company in Coventry, England. The Triumph TR250 is a version of the car built for the North American market. Production ran for 14 months, from August 1967 to September 1968.
With the release of the TR4 in 1961, Triumph left behind the sidescreen era cars for a model with more contemporary full-width styling, and the arrival of the TR4A in 1965 brought a revised chassis and independent rear suspension. These changes were accompanied by steady increases in weight, while horsepower only rose nominally. To address this creeping performance deficit, and anticipating that the TR4's Standard wet liner inline-four engine could not be made to meet more stringent American emmission regulations coming into effect in 1968, Triumph began development of a successor to the TR4.
Triumph began testing a six-cylinder TR as early as 1962. Even before the TR4A was available in showrooms, Triumph started the "Wasp" programme to develop its successor. At least seven Wasp cars were built for testing and development. Chassis X747 was completed in February 1965; X748 was ready in February 1966; X753, X754, and X755 were registered for road use in 1967; prototypes X760 and X761 were also built in 1967.
Triumph selected a British-made fuel injection system to handle the car's air/fuel mixture, but was unable to make the system compliant with new American emission standards. In addition, American Triumph dealers objected to the injected engine's price premium. These issues led Triumph to develop two versions of the car to be sold under different names in different markets—the carburetted TR250 for the North American market, and the fuel-injected TR5 for the rest of the world.
American dealers had previously balked at the cost of the TR4A's independent rear suspension (IRS), and convinced Triumph to sell a less expensive version of the car with a live rear axle on semi-elliptic springs in the US. As no objections were raised to the IRS in the TR5, no beam axle version of it was developed.
Production of the TR4A ended in July 1964, with production of the TR250 beginning immediately afterwards, and TR5 production starting a short time later.
The TR5's open two-seater body is nearly indistinguishable from the Michelotti-designed TR4 that preceded it. Externally, there are a new grille, side trim, rear marker lights, and badges. Standard wheels are steel with Rostyle-inspired covers, with wire wheels optional. On the interior, padded spokes on the steering wheel and updated knobs and switches signal compliance with new American safety standards. The dash was still of wood, but now with a matte finish.
The previous cars' optional hard top configuration continued to be offered. This weather protection system comprised a fixed, rigid rear section that included a glass back light, and a removable section over the driver and passenger's heads. The removable section came in two types: a rigid panel made of steel or fibreglass, and a flexible one made of fabric, called a "surrey top".
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