‘Iconic’ is a word that gets seriously over-used - these days everything from buildings to haircuts are given the label. But here at Big Motoring World we’re quite happy to use it for vehicle as legendary as the traditional black London cab - a car so distinctive that you could tell it from its outline alone. It’s been a fixture on London’s streets since the Austin FX4 was introduced in 1958, but its current version has been coming under increasing pressure to adapt...