1966 | Triumph TR 4A IRS

The Triumph TR range (Triumph Roadster) was the symbol of the spirit of the English sports car. After the TR2 & TR3 models of the 1950s, succession was needed. In the autumn of 1961 the TR4 is presented at the London Motor Show. Designed by the Italian bodybuilder Michelotti, it shows a tense and angular profile that breaks with the round lines of its predecessors, its frame chassis remains classic and its rear axle is still rigid axle with leaf springs. It retains the old 2.2-liter engine of the TR3. This engine was later modified for use on Ferguson tractors, not the other way around as many believe.
In 1965, against a very strong competition, including the Alfa Giulia Sprint, the Lancia Fulvia and the Fiat cabriolet, Triumph must make concessions to progress and launches the TR4A which finally receives a new chassis and a rear suspension with independent wheels IRS ( Independent Rear Suspension). The characteristics of comfort and handling are now up to the competition.
TR4 gives way to the TR5 in 1967.

- Specifications
- Bodywork
- Length: cm (in): 394 (155.1)
- Width: cm (in): 147 (58)
- Height: cm (in): 127 (50)
- Wheelbase: cm (in): 224 (88)
- Weight: kg (lb): 965 (2130)
- Mechanics.
- Displacement: straight-four 2138 cc (130 ci), front-mounted
- Valve gear: 8
- Fuel system: 1 Stromberg carburettor
- Gearbox: 4-speed manual
- Driven wheels: rear-wheel drive
- Maximum power: 104 bhp at 4700 rpm
- Maximum torque: 147 Nm at 3000 rpm
- Maximum speed: 175 km/h (109 mph)
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