Allan L is quite right...that is in fact a Porsche Type 64.
In 1938 Porsche was commissioned to develop a high-performance version of the VW to enter the Berlin-Rome-Berlin race scheduled for September 1939 but never held because World War II broke out.
The project 64 cars, dubbed Type 64's,were constructed.The streamlined light-alloy body was borrowed from a canceled plan to develop a road coupe from an Auto Union racing car.The engine,the flat 4-cyl 1.1 litre engine was pushed from 22 to 50 hp with 2 carburetors,larger valves, a special camshaft and a high compression ratio.