Fun track, enjoyed driving it on a kart. But the Textures are still a bit strange and the track is lacking in overall details. Also, you can work around the Problem with the Light Source thanks to the Custom Shaders Patch
I have reinstalled GTR 2 on my PC and I just tested this circuit. For me, this is remarkable work, a fast track with fast and varied curves, I applause. Also a texture choice for the road that I love, giving a retro side to this track. This circuit joins for me those I prefer with Spa Historique and Le Mans. Keep creating tracks, it’s great!
Looks like you have modeled Scalextric rather than SCX, but in either case that track is too narrow. It might have been better to model Carrera, being 1/32 cars on 1/24 track.
But anyhoo I'm taking it much too seriously for a neat little April prank.