I would generally consider myself a VW apologist, but what you’re saying is simply not correct. They didn’t just make “a few vehicles for the military,” they produced over 50,000 kubelwagens, over 15,000 schwimmwagens, and hundreds of officers’ vehicles. They were the primary manufacturer of light military vehicles for Germany during the war. To this day the schwimmwagen holds the highest mass production figures of any amphibious vehicle.
Here’s an info plate out of a 1943 kubelwagen, with (uppercase V) “Volkswagenwerk G.m.b.H.” across the top, just as they did all through the Ivan Hirst and Heinz Nordhoff eras.
They even had nearly the same logo going back to before the war. This is an example of the “cog emblem” as seen on the hood of a 1943 Volkswagen.
Sure, it also irks me when people start with the “nazi car” and “designed by Hitler” nonsense. The origins of the company aren’t something to be celebrated, but they’re not something to be denied either. And like you say, no German car company is totally clean, including use of slave labor by VW, Mercedes, and BMW.
Still, I see the post-war, civilian production of VWs as an example of the success of the reconstruction of West Germany rather than a continuation of any nazi ideology.