production of the a40 sports occurred in two series. the initial "gd2 series" began in november 1950 and featured a floor gear change and dashboard identical to that of the devon. the later "gd3 series" began production in august 1951 and ended in april 1953, featuring a steering-column gear change, full hydraulic brakes, and a revised dash with a centred instrument panel. 4,011 a40 sports were built.