The British Rail Class 312 alternating current (AC) electric multiple units (EMUs) were built between 1975 and 1978 for use on outer-suburban passenger services. It was the last class of multiple unit to be constructed with the British Rail Mark 2 bodyshell, as well as the last class of multiple unit to be built with slam doors in Britain. These features contributed to their relatively early withdrawal at 25–28 years old, compared with a typical EMU life expectancy of 30–40 years.
First Great Eastern Class 312 at Kirby Cross in 2004
Inside a Class 312 unit before refurbishment
Class 312 in 1970s blue/grey livery
A c2c Class 312 at Shoeburyness in March 2003
The Mark 2 family of railway carriages are British Rail's second design of carriages. They were built by British Rail workshops between 1964 and 1975 and were of steel construction.
Mark 2f First open in original British Rail livery
The interior of a Mark 2 Open First showing the former Virgin Trains West Coast Burgundy seat moquette trim
Class 310
Class 312