Might have just been me, but it was really choppy to play - which is really just an issue with unity webbuilds, since that seems to always be the case! like a bit of a gamble if it'll run faster than a powerpoint or not.
But! I like this one! The speed feels really good, and I like the idea of just controlling a tire.
Some visual impact to the tire, like it shrinking in size as the rubber gets low (sorry if you already did this and I just didn't notice it through the 15fps I was getting) would add some impact