The German Wehrmacht command ordered in 1942 the growth of a straightforward semi-track load carring vehicle, which could replace the present 3 and 5 ton tractors. Bussing/NAG was awarded utilizing the contract as well as in 1943 the manufacturing began at a reduced rate. The non armoured load carrier with a canvas became armoured Flak companies. The track suspension system system was in fact just like the one employed for the Panther tanks. An overall of 825 sWS cars had been made from 1943 to 1945."",0"