Original: British Rail Class 158 Express Sprinter is a diesel multiple-unit (DMU) train, built for British Rail between 1989 and 1992 by BREL at its Derby Works.
Simplified: British Rail Class 158 Express Sprinter is a type of diesel multiple unit (DMU) train. They were built for British Rail between 1989 and 1992 by BREL at their Derby Works.