Man this is hard! I kept getting no brakes and running into something and getting stuck. I really like this idea. The curses and challenges were interesting, and I kept restarting to try and do it without any mess-ups.
I think it might be easier if you could see more of the track, or maybe having a small minimap so you could see what is up ahead. Like on the part that mentioned the straight - away, I sped down that super fast but then it turned at the last second and I missed the time window.
Very cool and fun idea, thanks for sharing!