In wartime, weapons will often be made out of combining several already-used elements in order to create something that will fill a gap in an army's forces. Such is the case with the Sd.Kfz 234/4 (PaK 40). There was a distinct lack of highly-mobile anti-tank weapons in the field, and so the Germans added a PaK 40 to a Sd. Kfz 234 Armored Car, and that's what we've got here.
As Germany's army was being more penned-in by Allied forces, they needed a vehicle that could deal with all the incoming armor. The vehicle still worked mostly in a reconnaissance role, but with the added firepower the PaK 40 brought. There were several other configurations, depending on what other weaponry was sort of strapped on or used. However, this particular piece completes the German 8-wheeled Armored Car set for Warlord Games.