Solved:MS#25 - Slaby-Beringer.

[milos62]

Who knows this car?

[Carnut]

It's a bit easier to see this size!:

[milos62]

Expert´s ?

[4popoid]

It's a Slaby Beringer  design (note the Slaby Beringer logo on the wheel hubs) from 1923/1928.  The car was wooden, and powered by an air cooled DKW motorcycle engine.  It is possible that the car was marketed as the first DKW, as J.S. Rasmussen, who owned DKW, had a controlling interest in Slaby Beringer, and took over the Slaby Beringer company when it went into bankruptcy in 1924. This car was similar to the DKW powered Slaby Beringer single seater of 1923 (see the solved puzzle Wendax 777).

[milos62]

Yes, it is Slabý - Beringer. Point for you.

[Wendax]

I think some additional information is needed here. It is a Slaby-Beringer car, the driver is Rudolf Slaby, the passenger is Hermann Beringer. Contrary to 4popoid's answer the pictured car is not a DKW-engined one, but an electric one.

Slaby-Beringer started in 1919 with electric single-seater cars, whose wooden body was painted, mostly dark green. We had such a car here before: http://www.autopuzzles.com/forum/index.php?topic=4918.0 . To accomodate a passenger or luggage, Slaby-Beringer offered a trailer which was coupled so close that the car looked like a six-wheeler: http://www.autopuzzles.com/forum/index.php?topic=6736.0 . Some time in 1921, Slaby-Beringer changed the appearance of their cars by leaving the wooden planks unpainted and unfillered, just oiled, in order to diminish production costs. We had such a car as a single-seater before: http://www.autopuzzles.com/forum/index.php?topic=19851.0 , as well as this tandem-seater puzzle car. You can recognize the early electric Slaby-Beringer cars by their tiller steering, later ones as well as the petrol-engined cars (http://www.autopuzzles.com/forum/index.php?topic=23256.0 )featured a steering wheel.

[grobmotorix]

I´ve found a very rare and early photo from June 1919.
So short after the war, tires were still not available for civil purposes: