Founded in 1885, Triumph began manufacturing motorcycles in 1902. While developing into one of Britain's leading motorcycle manufacturers, the company also expanded into the manufacture of four-wheeled vehicles in 1921. In 1944, the four-wheel division was acquired by Standard Motor Company and re-launched as Standard-Triumph.

In 1946, Triumph introduced the Triumph Roadster 1800 as their first post-war creation. Then, at the 1952 London Motor Show, they unveiled a new model, the TR1.

The TR name comes from "Triumph Roadster," and its chassis was based on the pre-war Standard Flying Nine’s ladder frame.
The suspension is a Triumph Mayflower double-wishbone front and leaf-rigid rear and the engine was based on the 1,991 cc inline-four OHV from the Standard Vanguard. Despite being a mix of different components, the body was designed by Walter Belgrove, featuring a modern style with integrated body and fenders.

Ultimately, the TR1 was never sold, but in 1953, the TR2 was launched. It featured a redesigned body that housed the spare tire in the rear trunk, a strengthened ladder frame, and an engine tuned to produce 91 hp.

The affordable and high-performance TR2 was successful, particularly in the North American market, and was also active in rallies and road races. As a minor update to the TR2, the TR3 debuted in 1955, followed by the TR3A in 1957, which featured a 1,991 cc engine producing 102 hp.

While the basic structure remained the same as the TR2 and TR3, the TR3A had several small changes, including a wider front grille, with integrated marker lamps and turn signals, door handles that allowed for key locking, a crystal-finished meter panel, and redesigned seats.

Later changes included improvements to the side-screen mountings in 1958, emblem design changes in 1959, and in 1962, the TR3B was introduced with an enlarged 2,138 cc engine for the North American market. By December 1962, a total of 74,800 units had been produced, making it a huge success.

The works team also saw success in motorsport, competing in events like the Monte Carlo Rally and the Le Mans 24-hour race. A few of these cars also participated in the first Japanese Grand Prix held at Suzuka Circuit in 1963.

This TR3A is a 1960 model. Since most of the production was exported to the North American market, this particular car is a left-hand drive, North American version. The TR3A is known for its robust ladder frame and durable engine, making it a trouble-free car. This particular car also stands out for its excellent condition, particularly its body, which is usually prone to wear. It features a high level of originality, including an ebonite steering wheel and steel wheels with wheel caps.