Hi! First, thanks for releasing this. It's a quality track and I watched this thread with interest from the first post. Saw it available to try and I thought I'd give it a go.
Before release, I feared it was going to be biased toward the faster cars - all wide and fast and long straights. Please to say I was wrong about that: if anything, there are a lot more slow corners, and the track is a lot narrower, than I thought. Some of the bends are also seriously deceptive until you know the layout, which is great. Highlight of the layout for me though is the first few corners - I took my trusty Ferrari 312 out for a few laps and that sequence is heaps of fun. Kudos to you.
My only main criticism (which is meant as constructively as possible!) is two things, but it's really one thing. Mainly: the colours! Almost everything apart from the sky or the grass/trees is some shade of grey. Track (fair enough, but) walls, barriers, buildings, bridges, grandstands, grey grey grey. It feels very cold and utilitarian. The second thing is largely caused by the first: it's a long track and I found that I mixed up certain corners because they looked or felt very similar, even after several laps. This isn't a layout issue as much as an appearance one, for me - if more areas of the track were visually unique I don't think it'd be a problem. I feel that some of those oppressive concrete walls could surely be painted, at least.
Anyway overall it's a really solid track, fun to learn and drive and thanks a lot for putting the effort in to make it!