The British Rail Class 153 Super Sprinters are single-coach railcars converted from two-coach Class 155 diesel multiple units in the early 1990s. The class was intended for service on rural branch lines, either where passenger numbers do not justify longer trains or to boost the capacity on services with high passenger volume.
The conversion involved retrofitting a driver's cab at into the spaces previously used for luggage racks at the "inside" end (B-end) of each vehicle, where each vehicle had previously been coupled back-to-back with its matching opposite in a Class 155 formation.
Unit 153374 has been preserved, for static use as a community cafe, at Cynheidre on the Llanelli and Mynydd Mawr Railway. Units 153308 & 153371, whilst not strictly preserved, are used on the Great Central Railway for testing contracts but may see occasional passenger usage.