Great game. Of course the game will benefit some cosmetics, SFX, animation, but the gameplay is brilliant.
It looks like some child game (It's not pejorative) done with a graph paper. With simple rule, you have to master acceleration/deceleration, momentum to manage your turns, avoid crashes.
I found the map a bit long, and some visibility on the next turn will be good with some mini-map, or a way to move the camera, or simply a blinking sign telling you where it gone turn next...
Good game. Congratulation !