I think this idea of an increasing speed while trying to stay on track is really good, and the implementation of the movement is also very good.
The game would feel a little more complete with better visuals, and I think the idea you had for the camera snapping to the line was a good one although could have been implemented better.
Overall though, a game doesn't need to have great visuals to be fun and I think this game was definitely fun regardless. Good submission!