A few glitches...
This game was fun, but difficult, and I found many glitches. First off, sometimes I went through walls such as glasses that weren't meant to be permeable. Also, sometimes my tracks and smoke were above where my car actually was, instead of on the wheels. Also, I once got respawned into a stack of coins, where I couldn't move at all. The first level was difficult for a first level, as well.
Now for the good news. The game is very fun and I like the art style. If you fixed the glitches, this would be a 10/10.