Andrzej, thank you very much for your 'East European X-Pics'! I'll try to identify some of them...
Picture #4 (specially for me :-) ) is taken at Borovaya track, nr Minsk. Possibly it is the 1974 event, as in 1973, the front row was occupied by two Ladas & two Škodas, and in 1975, there were three Škodas and one Lada in the front row.
The car on the image #9 is the gas-turbined Pioner 2M designed by Ilya Tikhomirov, the engineer from Moscow. It was the modified Kharkov L1 record car, which was a diminished copy of a pre-war Auto Union - Holger, your feeling for any Auto Union traces in motorsport history hasn't let you down again ;) There were 13 speed records set by Pioner in 1961-72, including the absloute USSR speed record, 311.419 km/h (set on September 1, 1963 on Baskunchak salt lake). Pioner was discussed on TNF earlier - see
this thread.
Unfortunately I cannot identify the car #8. There were many sportscars built in the USSR in the late 50s and the early 60s by amateur drivers. Most of there sportscars didn't have any name and thus still remain a very dark chapter of Soviet motosport. I only guess that the photo is taken at Minsk highway, nr Moscow - three letters 'ÏÎÂ' on the road sign are definitely the first letters of the word 'ÏÎÂÎÐÎÒ' ('turning', 'bend'), and such road signs were installed in the places where drivers should turn around them and go in the opposite direction. The last highway race in the USSR was held on May 15, 1960, and the photo must be taken by this date.
P.S. Can I continue this thread by posting a couple of new 'X-Pics' here so as to be identified?