Agree on the points André 57 already mentioned. I would get rid of the white line in the middle of the track and replace at least some of the concrete walls by crash barriers. Tribunes are very massive, and less Zossen signs would not hurt either. If you are going to add spectators, which would be fine for me (others may differ) I would like some better figures.
Trees are obvious ly cardboard looking at some places, good looking at other spots.
The car does not follow the track map (like a GPS that lost it's way ;-)
Could very well become a nice track to race on, despite it being fictional.