an official TOPS class designation. Withdrawal The units were replaced by newer "Sprinter" units in the late 1980s. By 1992, only two units were still in service, based at Tyseley depot in Birmingham, and all were withdrawn by July of that year. The final set, T027, was eventually preserved at Midland Railway Centre, Butterley. Non-passenger use Five units were rebuilt as parcels units with roller-shutter doors in 1988. These were repainted in Royal Mail red livery, and were based at Cambridge depot. They were withdrawn in 1991. Four of the units were scrapped, whilst the fifth was rebuilt as a test train for the new ATP. This unit passed into EWS ownership with the privatisation of Britain's railways. It was then used in a new role of a route-learner unit, until it was withdrawn in 2002. It was eventually preserved in 2004. Parcels cars - converted in 1986 All were allocated to CA. Initially only the seats were removed, although later a more substantial conversion was carried out, including the fitting of roller shutter doors, with two sets of these on the DTCs where the vestibules/passenger doors had been. Departmental ADB 977775/6 were converted into an Automatic Train Protection demonstration train and fitted with both types of ATP systems from the BR pilot schemes c1991. Following the abandonment of ATP development, the unit found a new lease of life with EWS as a route learning and inspection saloon based initially at Margam South Wales. Preservation Only two sets have been preserved on heritage railways. Notable appearances in media E50009 features in the 1959 British Railways training film The diesel train driver, part 2 - Driving the train References Sources Motive Power Recognition: 3 DMUs. Colin J. Marsden British Railway Pictorial: First Generation DMUs. Kevin Robertson British Rail Fleet Survey 8: Diesel Multiple Units- The First Generation. Brian Haresnape A Pictorial Record of British Railways Diesel Multiple Units. Brian Golding External links Midland Railway Trust Railcar Group - owners of units 50019+56006 and 56015+50015. The Railcar Association 114 Train-related introductions in 1960