Very fun! The leaderboard was an excellent addition since it made me want to play it over and over again. I spent around an hour just powersliding and trying different cars. The driving is very satisfying and just difficult enough to make me want to keep trying to master it and improve. Nice job!
The only pieces that stood out to me that could be a bit better were that the sound was a little quiet, the walls were a little "sticky" when crashing into them, and the car turned in the opposite direction than I expected when moving backwards.