Woah! That's a cool looking racing game! Reminds me of Outrun.
The visual presentation and CRT screen effect are really well done!
The music is a great fit for the game too.
My only issue with this game is that the jam's theme is very weak. The "reactions" only happen once per checkpoint and these are very far apart. Maybe adding pickups that give a score/speed boost along the way the more you chain/combo in a row with a big combo counter on the side of the screen would have hit the mark better.
I would've also loved to see the car slide to the side and pop some smoke when doing the drifts, but it's understandable not having it due to the time constraint of the jam.
Good job!