It looks incredible! I saw the discord progress video and thought "what is the gameplay for this?", but its actually really well executed. I also like that the different sizes were incorporated, it seemed like (not sure though) that specific sizes were only allowed to park in specific spots, else you got deducted points.
As the other comments are saying, would have probably chosen a different button for the reverse, as its not really intuitive.
Great game, and especially really well done on the theme!