I haven't played or experienced something more casual like this in a long time. The feeling of just playing without overthinking anything did feel really relaxing. Your game has a lot of potential. You could turn it into a big io game even.
Although, I did get confused on what's the main objective of the game is (destroying as many cars I guess.) A tutorial or something like that would never hurt.
Great job anyway and I hope to see some more of your projects in future!