This is a stupidly enjoyable game! Reminds me of a lot of high-quality flash games I would play when I was younger. Visuals are great - I love how tactile and weighty everything feels in lieu of the polish aimed at these particular areas. I also love the naturally evolving chaos that emerges from the systems you've built being pushed further with more cars. There's something I really appreciate about simple mechanics that allow for complexity down the line.
It might be nice if you had access to more movement options as the car. At a certain point (for me about 1km) where it got so chaotic that it felt nearly impossible to actually dodge all the traffic with my available tools. Something like a rechargeable side dash (or something more car-appropriate) could be an interesting way to deliver depth to the existing gameplay loop. Another minor addition would be to give the road a visual overhaul to put it in line with how pretty the cars look - it looks a little drab right now!
Overall though amazing job!