I can very much see the effort you put into the game - it's unfortunate we can not see the models in a closer look, because I feel like they would really shine, with those cool and spooky designs! :)
I feel like it was a bit hard for me to get into the game, because of how the cars control. I am not sure if that is how cars usually control in top-down perspective games, but W making the car move forward from the cars perspective really confused me, and not from "my" global perspective really confused me at first! (But then again, I feel like that is not easy to implement while also having actual car-like steering)
From a game design point, I feel like the game is a little too fast-paced and chaotic. (Even though that makes it incorporate the "Madness" aspect quite well!) Personally I often felt lost and like I had no overview nor real control over what is happening - with cars bumping into me a lot and pushing each other around. But then again, I find it difficult to suggest anything to fix that without losing the actual spirit of the game idea!
If you want to develop the game further after the jam, I will definitely be excited to see how it progresses! :)