Sunbeam, now part of the Rootes organisation, first announced its Alpine sports model in 1959. The new model was a change of direction for Sunbeam, previous models were larger touring cars, this model was aimed at the younger MG/Triumph TR market. Throughout its production life the model was continuously developed and improved, production finally finished in 1968.
The Alpine IV replaced the Mk III in 1964 and introduced a new rear styling changes which incorporated smaller tail fins. Both GT and Roadster now shared the same engine tune and could be specified with optional overdrive or automatic gearboxes.