Coupling code: Blue Square
Underframe: 64ft 6in
Engines: AEC 150hp / Leyland 150hp
This was a Cross-Country design built by a private builder due to build capacity limitations at British Railway's own workshops. It had the same body layout as the Swindon Class 120s, but with a Derby design cab.
Their use was widespread throughout the Western Region and on services in the Midlands sourced by Tyseley Depot. They were also associated with the Bristol-Weymouth workings from their introduction, and also based at Cardiff to work the outer suburban services to Oxford - often as 7 car sets with the addition of a Hawksworth composite adapted to run as DMU trailers.
Three power cars survived into preservation.