I like the concept.
The main issue I had is the track design. I wish they were a bit shorter. If you are far enough ahead you kinda just spend 5 minutes taking wide turns or going down straight lines. Some more obstacles or tighter turns could be fun. As well, there were several times where I felt like I could not see ahead of me well enough to be confident going forward. Like for the last track I could never see the pits or turns until I was right infront of them. Some arrows or a better camera would help