Have you played Forza 2 yet?  This game is absolutely owning me right now.  I downloaded the demo about a month ago, tried it, and really didn't like it that much.  I found it too difficult to keep my car on the tarmac, as I was spending more time in the sand and dirt than I was on the pavement.  Then I got my hands on the retail game.  Once I figured out how to tune the car to my liking, I was immediately hooked.  The graphics are great, sound is excellent, and the controls feel just right.  My only complaint at this point is the fact that you can't expect to spend all your time and budget on a single car, as you're forced to use different classes and makes to progress through the game.  I wish I could take a single car and max it out and race it over the course of an entire career if I choose to.  Oh well, there's always Forza 3. 

I had some time to try my best at some paint jobs.  These are certainly nothing compared to some out there, but I'm especially proud of the Crazy Taxi design.  Check it out!