There was a similar story in WSJ last weekend.
I'm still not convinced that Ganz has a "beetle" connection, with the preceding MaiKaefer, Standard-Superior, and Rumpler. But certainly see the VW connection.
Early sketches:
Also interesting, and probably intentional: In German, the word Ganz means "quite" or "fully". So the "Ganz-Klein-Wagen" label has two meanings. Ganz's "small car", and "quite small car".
Thanks for posting the links.
Tom