CFS Macro--Sd. Kfz 232 (8-Rad). The heavy Panzerspahwagen was a large but very fast addition to the German mobile arsenal of the early war years. The original 6-Rad (6 wheeled) versions were based on a 6x4 truck with armoured body, but by 1937 they were being replaced by the 8-Rad versions. During the replacement, the Sd. Kfz - (Sonderkraftfahrzeug, or special purpose vehicle) numbers were carried directly over; differentiation is made by the addition of 6-Rad or 8-Rad (Ger: "6 wheel" or "8 wheel") in the vehicle name. By Edmundo Abad.