It’s a great game and a good idea. Reminds me a lot of Teardown.
One note: I was able to take the first corner and then just takeoff for ten second laps on almost every lap. I understand that you’re supposed to be able to take shortcuts but that’s not a shortcut; that’s just cheating. My solution is to add a version of checkpoints so that they get forced to at least sometimes use the road, but that’s your job.