Yes, it is a IFA F9 Kombi, but not one of those two versions usually mentioned in literature. The first F9 wagons had a woody-like appearance with bolt-on rear wings, followed by an all-steel version with flared-in fenders. The puzzle car has a steel body, but with bolt-on fenders. It is a mixture of wagon and van, and its rear door is hinged at the opposite side than the door of the usual wagon. Looking at the finish of the bodywork it seems to be a professional job. Does anybody have an idea about the coachbuilder?
Attached are some more pictures of the puzzle car and the two Kombi versions offered by IFA.
One more point for you, targhediferro.