As a pianist, I took notes from the music you made. It's so simple, but it fits the game perfectly! Pretty chill :)
The puzzles are quite fun, I had a lot of fun trying to figure out how to do some of the levels.
The controls are... something else. I'm not sure if you need to change them, but adding something like an arrow above the car showing which direction it is facing right now would make it a bit easier. Maybe even better, 3 smaller arrows in front of the car, to show you which way you would drive when you press the corresponding key?
I wanted to play through all the levels but there were so many that I stopped when a third car appeared. I think I would've finished it if the arrow system I mentioned would've been there.
I'm a programmer so excuse the lacking skills in drawing, but something like this:
Anyway, the game seemed pretty simplistic at first, but I had a lot of fun playing it.
Thank you :)