The up-market variant of the Triumph 2000 series made its debut in 1970. Features that separated it from the Mk2 2000, included black-bezelled instuments which included a tacho, 3-spoke steering wheel, heavily sculpured rear seat made for 2 persons, black vinyl trim on the C pillars and boot panel between the lights, black grille.
The entire mechanicals were carried over from the Mk1 PI, with negligible changes.
The Stag was released in September 1970. The body was designed by Micholetti and powered by its own unique Triumph designed 3000cc SOHC V8 that produced 145bhp. All Stags came with a removeable hardtop and foldaway soft top. The Stag V8 convertible was astounding value for money, less than half the cost of its rivals.
The TR3 replaced the TR2 in October 1955. Over its lifetime it was uprated to TR3A (1957), the first British car to adopt front disc brakes. Its engine was rated at 100bhp at 5000rpm. A model designated as TR3B was built specifically for the US market.
The TR4 with a dramatically new shape styled by Michelotti, was released in 1961. Its engine is slightly larger than the tr3 at 2138cc, but was still rated at 100bhp at 4700rpm. In 1965, the TR4A was introduced with its main feature being independent rear suspension and engine output of 104bhp.