Ok, this is epic.Placed #1 on lvl1 (edit. now also in lvl 2). The game feels a lot better flat, than it does with jumps and inclines in my opinion, 'm still to beat lvl 4, but MY GOODNESS, IS IT FUN! Reducing the game to few highly contrasting colours gives it an awesome feel, the driving is cool, the music is badass. Very simple mechanically and visually, so you get a pass on the theme (hell, that's how I approached the theme myself :p ). A lot of the fun comes from the leaderboard - wouln't be nearly as replayable without it.
Awesome work, best entry I saw so far.