Virginia International Raceway, or VIR. To me it's like the American nurburgring.
The crazy thing is, the layout in ferrari challenge is just the north course, the full course is amazing, and the grand east and grand west versions are even better and longer!
I'm pretty sure it's the most complex and demanding track in America, and in ferrari challenge I think it's the best track in the game, and I think it's the best in ferrari the race experience too.
I've never been a huge fan of Spa. Good track but I don't think it's all it's cracked up to be. A lot of fun in really fast race cars though. It's a great F1, GT1 or LMP track