This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Panzerkampfwagen I was produced in two main very similar variants Ausf A (1934) and Ausf B (1935), which had different suspensions and engines. Ausf A was produced from July of 1934 to June of 1936 , while Ausf B was produced from August of 1935 to June of 1937. Both were produced by Henschel, MAN, Krupp-Gruson and Daimler-Benz. Ausf A proved to be underpowered and its very loud 57hp Krupp engine overheated and Ausf B with its 100hp Maybach engine was an improved version of Ausf A (See my other model). Both models had identical turret and superstructure but Ausf B was longer (additional roadwheel) and had new modified engine deck (new engine). Both variants were operated by two men crew - a driver and a commander/gunner. The main armament consisted of two 7.92mm MG13 Dreyse (medium) machine guns with rate of fire of 650 rounds per minute.