[emehrkay]

Hmm, things started off interesting with the best car i've seen thus far (short, wheels covered the top and bottom, etc) then this

http://imgur.com/a/XFCYZ

[extrapolate]

The track/car generation is done through JS, so some modifications aren't anything Chrome Dev Tools can't handle. Add to that the fact that the "best" car is populated into the gene pools of all the other users and that's the outcome.