Carnut, out of interest, what was the confusing pert?
Well, I had it as the ZIL-112S 'Golubaya Raketa' ('Blue Rocket') shown on its first outing in Leningrad 1961.
There was a picture of it in blue to back up the contention, though in the thread D-Type sent me it quoted that the car had appeared in white and in red but never in blue.. The picture is shown below.
Reading the thread D-Type sent me however it seems clear that the Golubaya Raketa was much earlier and this car is as solved by D-Type. Google for ZIL-112S Golubaya Raketa however and you will get pictures showing this car..