A driving game in Godot in 10 days, unfinished but still, good effort.

I'm curious how you have set up the vehicle controls.  Have you used the built in vehicle nodes or are you doing it differently?

The vehicle doesn't quite seem to have enough friction and feels a bit too floaty, making it difficult to control.  I have previously tried looking into making a driving game, but found that the built in system is very buggy these days and hasn't been updated in a while.  I've tried making my own controller following some tutorials and tweaking them, and had some success in the physics side, the last time I looked at it though the wheels occasionally stopped updating correctly (more tweaking to do).

I like the setup and the environment, but feel that there is more that could be done in fixing the shapes and collisions on the environment to reduce the chance of getting stuck because of geometry.

I hope you continue with this as I would like to see a working racing/driving game made in Godot that works without much issue.  For all of Godot's capabilities, vehicle physics is an area that still needs some work.