Look guys what i just found on modsgaming.us. https://www.modsgaming.us/load/beamng/vehicles/car_polonez_caro_atu/71-1-0-38641
The model so far looks absolutely rubbish. I mean, really terrible. In other words, it is very accurate to a real Polonez. In all seriousness though, this looks quite cool.
Now I don't have much time for it. I'm waiting for another night shifts at my job. I did most of work on polonez while working in my regular job