First of all, as a local with Barber Motorsports Park in "my backyard," thank you so much for recreating it—the track map geometry is probably as close as possible to the real thing and it's very enjoyable!
I will say in terms of elevation, however, that the incline up the front straight is absolutely wrong—the actual front straight is flat with no incline whatsoever and merely dips off going into turn 1. There's also a significant hill/crest between turns 12 and 13 where vehicles get pretty light. The "Alabama Rollercoaster" between turns 3 and 4 should also have a much more significant dip and crest at 4 (it's the most significant elevation change in the whole track, and a LOT of fun), but I think that's likely beyond the constraints of the Course Maker. The incline coming out of turn 5 is almost eerily perfect, though! If there's any way at all to incorporate those corrections into the course, I would be ecstatic!
Barber Motorsports Park v1.0
Slightly longer version with lengthened homestraight (600m), elevation very similar to original
I will give it to Silviozgb. Good surprise downloading this track. You can really attack the corners and it reward you back. Where is it located?.. Very good elevation changes. Your next project, could you try make Zolder, and Donington '93 version:). To all of you, don't hesitate to download this one. Great work, well done.
1st i was little bit sceptic to download it. But really good surprised. Maybe the best track i ever played in Gran turismo. It schould be part of it by default. Its absolutelly reality feeling to drive on it. Congratulations. More 5 stars. Well this one is must have.