Sorry for such a late reply
YEs, del78 is right. This car was officially registered as a DKW SAM (SAM was a polish designation of self-built cars). Mr. Okarmus started building this car in 1958, finished in 1964. The basis was a 1938 DKW, later the engine and gearbox were changed to ones from SAAB. Body was made from laminate, as Mr. Okarmus was one of the best glider designers and had a vast experience with this material.
There were three cars designed and made altogether by Mr. Okarmus and fellow glider designers from Bielsko-Biała. The second car was the Phoenix VW by Mr. Szuba, which I think has already been posted, but I can't find it. The third car has been considered lost.