Development work of Sd.Kfz.234 commenced in August 1940 and the Sd.Kfz.234 had four distinct variants, the last of which was the Sd.Kfz.234/4. The production variant of this 8-wheeled vehicle boasted a 7.5cm PaK 40 L/46 anti-tank gun installed in an open-topped fighting compartment. Only 89 vehicles were produced between December 1944 and March 1945 (Dragon 6772). An improved Sd.Kz.234/4 was also planned and this would have featured a 7.5cm L/48 AK 7B84 cannon.