The Triumph TR series refers to a line of sports cars produced by the British manufacturer Triumph from the 1950s to the 1980s. Notable models include the TR2, TR3, TR4, and TR6, which are celebrated for their classic design and spirited performance. These cars are known for their lightweight construction and rear-wheel drive, making them popular among driving enthusiasts. The Triumph TR models were designed to offer an engaging driving experience, often featuring a 4-cylinder or 6-cylinder engine. They gained a reputation for their stylish looks and were frequently used in motorsports, contributing to their legacy as iconic British sports cars.