The British Rail Class 768 is a class of bi-mode multiple unit being converted from Class 319 passenger trains by Brush Traction and Wabtec to carry parcels.

An electro-diesel multiple unit (EDMU) or bi-mode multiple unit (BMU) is a form of a multiple unit train that can be powered either by electric power picked up from the overhead lines or third rail or by using an onboard diesel engine, driving an electric generator, which produces alternating current (AC) or direct current (DC) electric power.