Here is a picture of the 1931 Beetle-like Mercedes-Benz 120H prototype with a rear-mounted engine.

[George Smolinski]

[alsancle]

A scale model?

[8E45E]

Here is a picture of a 1938 Styer Type 55.

 

See the similarities in design??

[Leif in Calif]

Here's the Mercedes 130h, a rear engine car that shows Porsche's design concept was not unique to him. It had a rear mounted 4 cylinder "boxer" motor. It didn't sell well and was discontinued. Porsche's design was cheaper to produce and hit at just the right time...circa 1950...many years after he drew it! 

[Pfeil]

Here is the 1932 Porsche/NSU 

> father and son

 

A working model below. Porsche needed bodies produced to certify for the German labor front, but because it was only a design firm and the factory had not been built, Hitler made Mercedes build bodies for testing.1938. These cars are known as VW30 and 30 cars were produced. Tested by the SS to certify the design, were driven on the finished portions of the Autobahn and into the German alps.

 <in front of Porsches house  

 

 

1938 below and the final models and shape. The sedan, sunroof, and convertible.

 

[JamesR]

5 hours ago, 8E45E said:

Here is a picture of a 1938 Styer Type 55.

 

See the similarities in design??

 

  Yes I do. And maybe also a little Chrysler Airflow in there, at least visually.