Good game :), but if you like, change the size of cars (small), and the canvas size (big), and add some bonus (for example: health potion, slow cars potion...), and add a good assets from itch.io or other websites (pixel-art or svg, and they have the same style), and if you like add different maps and a store in the menu and add the text animated extantion in turbowarp "the normal variables style is really boring, in my opinion"... this is my opinion, and good luck :D