The Triumph TR3 is a sports car produced between 1955 and 1962 by Standard-Triumph in England. The facelifted variant, popularly but unofficially known as the TR3A, entered production in 1957 and the final version, unofficially the TR3B, was produced in 1962.
Although the car was usually supplied as an open two-seater, an occasional rear seat and bolt-on steel hard top were available as extras.
The bodywork closely resembled that of the previous models, the TR4 & TR5, but the front and back ends were squared off. This is sometimes referred to as a Kamm tail. The construction was fundamentally old-fashioned: the body was bolted onto a frame instead of the two being integrated into a unibody structure.
All TR6 sports cars featured inline six-cylinder engines. For the US market the engine was carbureted giving out 104 hp. Other world markets got the Lucas fuel-injected engine producing 150 bhp.
The TR6 featured a four-speed manual transmission. An optional overdrive unit was a desirable feature because it enabled aggressive driving and provided "long legs" for open motorways. TR6 also featured semi-trailing arm independent rear suspension, rack and pinion steering, 15-inch wheels and tires, pile carpet on floors and trunk, bucket seats and a full complement of instrumentation. Braking was accomplished by disc brakes at the front and drum brakes at the rear. A factory steel hardtop was optional. The TR6 dashboard was wooden (plywood with veneer). Other factory options included a rear anti-roll bar and a limited slip differential.