Description The Triumph TR6 was a British six-cylinder sports car, firstintroduced in 1969, and the best-seller of the TR range built by Triumph when production ended in July 1976. The Triumph TR6 sports cars featured inline six-cylinder engines. For the US market the engine was carburetted, as had been the US-only TR250 model's engine. For other world markets, including the United Kingdom, the TR6 was fuel-injected. The most powerful variation of the Triumph TR6 produced 150 bhp, accelerating from 0-60 mph in 8.2 seconds with a top speed of 120mph.