Well. Yes I was using bad SLRReditor. So, with it it won't change engine block compatibility anymore after pressing save & all cars have now exactly the same list of engines ticked (not all engines).
Added 14 minutes later:
I tried removing all cars & left only vanilla ones, still same. I'll try putting new game together then lol
Added 24 minutes later:
only put parts folder to new game, used slrreditor on vanilla car, still same shit
This post was edited by Coprone (2015-02-23 12:17, ago)