I had no idea what to expect when I downloaded the game but this was quite a pleasant surprise! The game is really at it's best when the car is actually moving around and you have to frantically adapt to stop it from hitting things - when you first start the car is almost completely still and I think it would be good to start the car moving actively, maybe in a sine wave pattern, until it gets hit by something, then where the car goes is left up to by physics.
I'm glad I checked this out, but my only critique is that I think this game needs better promo material to get people to click on it and play, and thus rate your game. I originally went in assuming "Car controller" was going to be an unfinished game featuring a controllable car and that's it. Yet, this is a whole game that you've finished!
If you take a look at the other games in this jam and on Itch in general, their pages have information describing the game in detail that would sum it up even if you have not played the game (all of this entices the potential player to download the game and check it out). Also in the game settings you can set a tagline - this really can be useful to sell your game with a short pitch about what makes your game different. I would sum it up as "Swipe obstacles out of the way to avoid an uncontrollable, physics based car!". Your idea is quite unique too - this would definitely get more people to click and try out the game. You don't need to change the page's theme settings but it also adds a nice touch to experiment around with layout styles for your page - this is why I love the Itch platform.
I would consider renaming the game to something like "Car Conundrum", "Chaotic Car", "Car Kerfuffle" or something that will help you stand out, as well as writing a nice description. I agree with the mobile game idea - if you polished this up, added a score and put an advert banner on the bottom of the screen you could have a really solid and fun mobile game.
Sorry for the lengthy essay! I hope you take any of these suggestions to mind and implement them - you are still able to do all these things I've mentioned during the voting window - as I really quite like your game and it would be a shame for people to pass over this game when they might also like it. Feel free to use any names or taglines I suggested in this post if you can't think of any for your own - it's tough to sum up your game. But also feel free to ask me if you want any more pointers in the right direction with this game.
Thanks for submitting this and thanks for reading!