Mainstay of London Buses Ltd's fleet into the 1990s, London's MCW Metrobus fleet of M class remained almost completely intact by the time of privatisation in the autumn of 1994. In the hands of seven new companies thereafter, there followed multiple new liveries and new identities, but it wasn't until the end of the decade, when this account takes up their story, that withdrawals commenced in the face of new low-floor double-deck buses. Even then, the venerable M class remained a solid option for second-hand purchases, allowing examples to remain into service past their twentieth birthdays.

Between 1998 and 2004 the M fleets of Arriva London North and South, First Capital and Centrewest, London General, London United, Metroline and Metroline London Northern and a host of smaller London contractors dwindled until the last examples, lingering on school routes for Leaside Travel, signed off at the beginning of 2006.