Originally the Commercial Car Company, taken over by Humber in 1926 and renamed Commer Cars. Commer & Humber were taken over by the Rootes Group in 1928. Commer's distinctive 3-cylinder 2-stroke diesel engine designed by Rootes Group member Tilling Stevens - the 'TS3' - was used extensively in the QX and later Maxiload models. Featured types: Q2, Q4, Q15, Q25, Superpoise 2-5 ton, QX underfloor-engine 7-12 ton, A25, Cob, BF 1 ton, Maxiload 14-16 ton & Walk-Thru.