China has one of the newest and strangest car modifying cultures out there. Case in point is this Audi, which would look more at home driven by a member of the Aryan Nation than a Chinese driver.
This picture, which popped up on Reddit, shows an Audi A4 in full Nazi regalia just parked on the street like it's no big deal. And it probably isn't there on purpose or to be malicious.
The historical significance of the symbols on the car might have been lost on the car modifier, who saw the uniform, perhaps thought it looked cool, and then added the stickers.
Is that a good excuse? No. Does that make sense? Yes.