I wanted to get sliding/drifting in but had trouble figuring out how to implement it. I ended up taking a shortcut and basically weighting the previous angle with the current angle (so if the previous angle was 90 degrees and this frame it's 80 degrees, it would turn at 89/88 degrees and gradually shift to 80). I've played it so many times testing it that it feels natural to me, but a few folks have mentioned that the controls feel weird. I kinda like it though, but i would've liked to get drifting in there as that was one of my favorite things from Mario Kart.
I've pushed one last update adding in collisions between cars (and some annoying music/sound effects), i had some more things i wanted to add but it takes so long to do graphics/music and i think i'm ready to just start on my next project now.