7D-009-006 Class 121 55031 BR Green Speed Whiskers Single Car DMUThe Class 121 and 122 Bubble cars form part of the first generation of DMUs produced by British Rail to operate on branch lines and secondary routes. The Class 121 was built by Pressed Steel in 1960, 15 single power cars numbered W55020 to W55035 and 10 trailer cars numbered W56280 to W56289 were manufactured. Until recently there were still two 121s in service and eight are preserved. FEATURES Heavy Diecast chassis for added weight and superior