Hey everyone, I've decided to come back to this track and fix it up some. I essentially took it apart and put it back together again, this time following the track map from the game. Here's what else has changed:
-added several new objects to the track that are present in the source material, such as wind turbines and the buildings above the pits
-swapped out the infield billboards for much larger ones to better represent the ones from the game; swapped out the building on the back stretch for a different one
-changed the back stretch grandstands from covered to uncovered
-added some signs present in the game noting pit entry
-changed the grass texture to a higher resolution one
-made the pit wall taller, and added a second one that's present in the source material
-went from two pit lanes to one, the garages on the front stretch are right next to what would be the pit stalls (see new promo image)
-as a result, moved the full pace lap start to the front stretch/turn one
I'm still looking for a several more objects, namely the little spotter/team tents behind the pit wall, an overhead banner that's wide enough for the back stretch, the bridge connecting to the building on the back stretch that goes over the track, and a flag box that more closely resembles the one from the game.