At the end of the 1950s, when the MG A enjoyed a successful commercial career, the managers of MG were already thinking about the future.

In 1959, the major stylistic and mechanical choices became clearer. The new MG will have a more rigid monocoque body that is easier to build and offers better roominess. As for the engine, after much trial and error, the choice fell on the four-cylinder 1800 which was soon to be housed under the hood. More efficient than the block of the MG A with its 95 hp, the four-cylinder will be able to boast of great flexibility and excellent robustness.

Presented in 1962 at the Earls Court Motor Show, the MG B marks an important evolution compared to the MG A. Less typical, it moves away from the traditional English roadster in order to appeal to a wider audience. The MG B emphasizes comfort to convince a new target of enthusiasts. Unsophisticated, it is a mass market car, robust and usable on a daily basis.