The Sunbeam Alpine was a sports car developed by the British manufacturer Rootes Group from 1953 to 1955 and then again from 1959 to 1968.
They successfully used three different four-cylinder engines, with 1.5-, 1.6- and 1.7-liter models, but if the Alpine was to compete on the world stage, it needed an engine with more power. The Rootes Group didn’t have such an engine, though, or the resources to develop one.
The company approached Ferrari to design an inline-four-cylinder engine...