The British Rail

British Rail

British Railways , which from 1965 traded as British Rail, was the operator of most of the rail transport in Great Britain between 1948 and 1997. It was formed from the nationalisation of the "Big Four" British railway companies and lasted until the gradual privatisation of British Rail, in stages...

 Class 411 (or 4 Cep) electrical multiple units were built at Eastleigh works from 1956-63 for the newly electrified main lines in Kent

Kent

Kent is a county in southeast England, and is one of the home counties. It borders East Sussex, Surrey and Greater London and has a defined boundary with Essex in the middle of the Thames Estuary. The ceremonial county boundaries of Kent include the shire county of Kent and the unitary borough of...

. These units were based on the earlier Southern Railway 4Cor

British Rail Class 404

The Southern Railway gave the designations 4-COR, 4-RES, 4-BUF and 4-GRI to the different types of electric multiple unit built to work the route between London Waterloo and Portsmouth Harbour. The 4-COR type units survived long enough in British Rail ownership to be allocated TOPS Class 404...

 design, built in 1937. They were replaced by Juniper

British Rail Class 458

The South West Trains Class 458 electrical multiple units were built by Alstom at Washwood Heath between 1998 and 2002. These units are part of Alstom's Juniper family of units, which also includes Classes 334 and 460.-Description:...

 units.
A total of 133 units were built, as two different types. The majority of units were 'standard' passenger-only units, complemented by units containing a buffet car.
The standard units contained passenger seating only, and formed the backbone of the new fleet.