Good entry with a solid game loop.
I had fun for a bit playing this, especially after I practiced the controls for a few mins. It would be awesome if you made gamepad and especially joystick controls for this; it screams joysticks to drive and steer with!
Some music and/or sounds would go a long way too. Like I said you have a solid gameplay loop so it would be awesome to see this added to post jam. One cool idea I think is to gradually have the camera zoom out as more time is taken up and/or you get a higher score, so that more of the map is revealed and you have more freedom to drive around. Also would be cool to have some sort of onscreen speedometer just for fun.
Good job!