Buses and trucks were able to use the same chassis and engines and, as was common practice for commercial vehicles, then have bespoke bodywork fitted. The Metropolitan Electric Tramways ordering 350 double-decker buses in 1912 and engines were sold to the London General Omnibus Company (LGOC).[69] The bus models were the 13 foot wheelbase CB (same chassis as the 4 ton truck) and the 12 foot wheelbase CC, both with 40 hp engines. With the onset of WW1 CC chassis production was stopped and CB production was ramped up for trucks for the military.