The MGB is a two-door sports car manufactured and marketed by the British Motor Corporation (BMC), later British Leyland, as a four-cylinder, soft-top roadster from 1962 until 1980. Its details were first published on 19 September 1962. Variants include the MGB GT three-door 2+2 coupé (1965–1980), the six-cylinder roadster and coupé MGC (1967–69), and the eight-cylinder 2+2 coupé, the MGB GT V8 (1973–76).
Replacing the MGA in 1962, production of the MGB and its variants continued until 1980. Sales for the MGB, MGC and MGB GT V8 combined totalled 523,836 cars. The MGB bodyshell was reprised in modified form with a limited run of 2,000 MG RV8 roadsters (1993–95).
The fixed-roof MGB GT was introduced in October 1965. Production continued until 1980, although export to the US ceased in 1974. The MGB GT sported a ground-breaking greenhouse designed by Pininfarina and launched the sporty “hatchback” style. By combining the sloping rear window with the rear deck lid, the B GT offered the utility of a station wagon while retaining the style and shape of a coupe. This new configuration was a 2+2 design with a right-angled rear bench seat and far more luggage space than in the roadster. Relatively few components differed, although the MGB GT did receive different suspension springs and anti-roll bars and a different windscreen which was more easily and inexpensively serviceable.
Although acceleration of the GT was slightly slower than that of the roadster, owing to its increased weight, top speed improved by 5 mph (8.0 km/h) to 105 mph (169 km/h) because of better aerodynamics.
The MGB Berlinette produced by the Belgian coach builder Jacques Coune utilised a raised windscreen to accommodate the fastback. Fifty-six were produced.