Cool game but I think you could merge the tutorial the first levels because they are too easy anyways (you keep the first level maybe with more roads to be sure it's done easily, and you add a small text for each one of the first levels to introduce concepts one by one). Because reading the how to play is boring and most of the rules can be understood easily. The game is overall too easy but it's always tough to balance a puzzle game during a game jam. It would have more potential with requirements other than just tiles (example: "this track needs a 6 tiles long straight line" or "this track needs a zigzag made of 4 tiles" etc) and crossroads or bridges or others tiles (maybe spectators tile that needs to be inside a curve of the track etc)