E83027 Pre-Owned Class 143 2-Car DMU 143611 GWR Green (FirstGroup) - WeatheredPre Owned Item, in as new condition. Test Run. The Class 143 Diesel Multiple Unit was part of British Rails Second Generation DMU fleet. Known as Pacers, along with the Class 141, 142 and 144s, the Class 143s were introduced by British Rail in the mid 1980s at a time when it was replacing its ageing fleet of first generation DMUs. Operating until 2021, this EFE Rail model depicts unit No. 143611 in FirstGroups GWR Green livery with weathered finish.