Considered among the most desirable sports cars ever built, Triumph's TR series were renowned for their strong performance, rugged construction, and iconic styling. Among the ranks of affordable sports cars, these legendary British automobiles introduced a host of innovations, including front disc brakes, independent rear suspensions and petrol injection, making them perennial sales and competition champions. From the stillborn 20TS prototype, Triumph developed the revolutionary TR2, which debuted as the fastest model in its class and spawned the bestselling TR3 and TR3A. With Italianate styling from Giovanni Michelotti, the TR4 and TR4A represented a whole new direction for the range, while the TR5 became a performance standout with its Lucas petrol injection. The evergreen TR6 represented the final chapter for the traditional "hairy-chested" British roadster, closing the book on one of the most successful families in motoring history. Award-winning historian John Nikas examines the design and development of the various TR models, while also detailing the competition record that made Triumph such a formidable opponent on the track and international rally circuit. With readable and engaging prose set against beautiful color portraits by Marc Vorgers and rare period photographs, this book provides all the information you need about TR sports cars.