The track is great and it's a very good start. The bumps make it unpredictable causing unexpected reactions in the cars, but I like it. The track is very technical and although it doesn't have impossible corners, you need to trace them carefully.
About the things that can be improved, I would recommend putting distance markers on the curves, correct the strange reflections (you can see them in the video below) and of course, as its creator says, fix the AI anomalous reactions. Also, although this is subjective and personal, I would like there to be fewer trees in certain areas.
https://youtu.be/w2RTziy9gto?t=90