http://www.achtungpanzer.com/kubus.htm
will take you to a very interesting Chevrolet armoured truck! It appears to be a 1938 Model TC 157" wheelbase. I have also seena photo in the '44 Warsaw Uprising of a comandeered pre-war Chevrolet truck. These were assembled by Lilpop Rau i Loewenstein, which was established around 1860 in Tsarist Poland as a heavy engineering company producing railway locomotives, rails, etc. The company got into motor car bodying int he Twenties and then in 1935 secured a licence to assemble Opels in Warsaw, and then in 1937 Chevrolet cars and trucks and Buick cars. In 1939 the Nazis took over the facilities, having destroyed 89 Chevrolets on railroad cars in the meantime, and then created Lilpop Rau und Loewenstein A.G. which became a munitions factory until 1944.