I found the picture, but without further explanations. The license plate is from Ingolstadt and the radiator grille bears the trademark of "Auto Union", the four rings. F 102 was presented in August 1963, so it might be a a pre-series model from 1962. But I think it is a design-study for DKW-VEMAG, a brasilian licensee of Auto-Union. Till 1967, they built DKW 3=6 with modified front design. So this car will be planed as follower for the brasilian market.