Here are a couple more. Green one is at the Museum Engstingen in Germany. Red one is the only one I have seen running and driving, it is in Switzerland.
Note the pic of the red one with the top up. It matches the green one in the museum, compare this to the ex-Weiner car, look at all the extra metal above the windscreen and how the top is fitted.
I know that car was rebuilt from a pile of scrap, so which one would be "correct"? Given the look of the white one, perhaps all of them are correct?