The British Rail Class 123 was a design of diesel multiple unit built for British Rail in 1963. They were the last first generation DMUs built for British Railways and were built at Swindon Works, designed like all Swindon units as inter-city sets. Ten of the four-car sets were built and introduced in 1963. The units bear a visible similarity to the British Rail Class 309, however, there is no relation here as the two types were built by different manufacturers for different markets. These units would be suitable as dlc for Diesel Legends of the GW and NTP as they started life on the WR on semi fast Paddington services before moving to the MR for use alongside Transpennine units. Class 123 Intercity dmu.
