The prototype is producing some really fun, vertigogenous courses. It will probably work best as quick-fire races 1-2 minutes long with scoring done over several races.
Anyway, here's a video of 4 AI drivers chasing me down:
Not sure when something playable will be available - it has some rough edges, no scoring, no sound and I need to attend to the graphical styling before unleash it, too.
Watch this space, but don't hold your breath! :-P