I recently found out about a really cool PC game, TrackMania:Sunrise. So far only the demo is available in the US but the demo is pretty cool. Full version is due out any day now. You can get the demo link at their web site, www.tmsunrise.com.
What makes the game so cool is that you can make your own tracks and race them online. I've been busy making tracks lately. Check them out here.
Have fun if you play them, and feel free to post comments on the tm-exchange site regarding each track. Feedback helps me make better tracks. Watch for Full Version tracks soon.