This could possibly be the ultimate Auto Puzzles car puzzle, as this vehicle is just so bland and anonymous, it could be based around one of any number of instantly forgettable Asian-produced mid-sized sedans of the 1980s and 90s, made by Daewoo, Hyundai, Daihatsu, Proton and so on...
So, as a wild guess (although it looks a little too large), could this be a Ling Kong KJ6380?