The Gun Motor Carriage M6 was developed regarding the famous 4x4 Dodge WC52 frame adopting, on rear deck, a 37 mm. light anti-tank weapon. Thanks to its Dodge T-214 6 cylinders engine the M6 surely could achieve, on road, the speed of 90 Km/h. The United States Army used GMC M6 from late 1942 as much as the end of World War II on all of the running theaters as the Mediterranean, the European front side together with Pacific. The GMC M6 ended up being set up and developed become anti-tank car but, since the first clashes in Tunisia, its light weapon had been usually inadequate up against the latest German tanks defenses. Its primary part was partially changed together with M6 grew to become utilized as infantry support automobiles.