I've been to Road Atlanta for tons of races over the years and have a couple dozen laps on it myself. This is VERY well done! The scenery all looks great, the track surface seems accurate, and over all it's a great representation of the real thing.
Only a few things to nitpick on:
- I'd love to see the yellow/red/white placards that are beneath the Turn 11 bridge. Those are super useful IRL to find your line going over the hill. This is what I'm referring to:
https://images59.fotki.com/v111/photos/3/226513/7440340/RoadAtlantatracktour106-vi.jpg
-I feel like T11 hill doesn't drop as quickly as it does IRL either. Once you go under the bridge, you start to drop almost immediately. Here though you seem to keep climbing a little before you drop. Maybe it's just how it appears on my screen. Or I'm just super picky :P
-Also, the pit lane walls on the right side are missing. Again, just a little nitpick.
Over all though, I'd give it 6 stars if I could. Awesome job!