Please identify this car for a point
Experts?
From Eastern Europe ?
yes
Polski-Fiat base?
no
From Hungary?
no
Russia? GAZ?
let's say Soviet Union. Not a GAZ or based on a GAZ
It isn't a KVN?
Yes, it is a KVN. Locked for you for a model designation
KVN-2500C.
Russian C is an S, and as I mixed up my answers - the car has a GAZ Volga engine, I don't torture you any longer.
According to my source this is the KVN 3500S from 1961. A point for you
In fact, KVN 3500S had a bigger engine from GAZ 12 ZIM - 3.5-liter inline six, hence '3500' in the name, as opposed to the earlier design with 2.5 Volga engine, being referred to as 2500S. Still, the car is basically the same as 2500S.
The history of those Kosenkov's sportscars is rather complicated and quite foggy at the moment, at least to me, due to a certain lack of information on that period. For example, together with the cars which are usually referred to as KVN 2500S/3500S there has apparently been another one built in Moscow on Kosenkov's blueprints. Moreover, those cars have been rebuilt during their life. I hope it will be possible to trace the life of each chassis one day.
I've had this picture of a 2500S to post as a puzzle for some time but I was never happy I had enough information about it:
Even here you can see the difference in the bodywork design :)