The Wolseley 15/50 came along in 1956 as a replacement for the 4/44, having finally graduated to a 1489cc B-series of its own. Apart from a few trifling differences in chrome trim, there were no other changes, unless you consider an extra fog lamp to be the dawn of a new age. Later cars have a BMC back axle and changed to front wheel cylinders matching those used on the Wolseley 1500. Production continued until 1958, when the 15/50 - and its MG ZB equivalent - was superceded by the 15/60 Farina-bodied family car.