Thanks for commenting! This was a last minute 2 day project so yeah, lots of nice details that could be added but weren't. I do want to make a road version of this with car upgrades and all that. That will definitely have more UI polish.
Ideally, this would be played with a controller that has an analog trigger so you have a lot more control over acceleration and braking. Alas, it seems like a lot of people don't play with a gamepad on their computers. At least not the casual players that this kind of games attract. I kind of decided that press to brake gave more control but once I have some form of UI, there's no reason to let the player decide one way or the other.