ZA weathered initial criticism from MG purists and went on to become a very popular and sought-after-car. In late 1956 it was superseded in production by the slightly modified ZB standard and Varitone saloons. The latter has two-tone paintwork and a wrap-round rear window. It has 68 bhp and top speed of 80 mph, a higher back axle ratio, and lost the chrome rim round the front wheel arch.
Long overdue replacement for the T series the MGA, introduced in 1956 has a new wider chassis enabling the occupants to sit down lower within the body, and more streamlined bodywork. Thus the 68 bhp 1489cc engine gives the car almost 100 mph performance. Full width bodywork and a small boot made this a more civilised car than it's predecessors. A fixed head Coupé version is also produced from 1956.