|In-line 4-cylinder, 1798cc
MG's replacement for the A was launched at the London Motor Show in September 1962, having been under development since the late 1950s, and the new B saw a major shift, with the traditional separate chassis/body giving way to a pressed steel monocoque structure that was both stronger and lighter. The MGB was powered by BMC's new B-series motor with the option of Laycock overdrive on third and top gears, but the rest of the mechanical components were carried over from existing models. The MGB's attractive lines nicely updated the traditional British roadster for the 1960s, with refinements like door handles and wind-up windows added for the first time, although a heater was still optional and the soft-top remained somewhat rudimentary. The B-series motor underwent some modifications in September 1964 with a five bearing crankshaft, while a fixed-head variant, the MGB GT, was added the following year. More significant changes took place in October 1967, with the adoption of an all-synchro gearbox (plus the option of an auto 'box for the first time) and improved electrics, most notably an alternator replacing the dynamo found on earlier cars. Further changes were necessitated by new safety legislation, including a collapsible steering column and padded dashboard. Dubbed the Mark II, the 1967-1973 MGBs arguably offer the best all-round package, retaining all the purity of the original design with a more enjoyable (not to mention reliable) driving experience. The evergreen MGB is, quite simply, the most popular sports car ever made in Britain and, as an affordable, practical and thoroughly enjoyable two-seater, still has tremendous appeal today.