The Good: Out of this world graphics and audio, great car handling, slick menus, lots of races and tracks, great physics and damage system
The Bad: Load times could be shorter, cars are a bit floaty, can't create any type of character, or car customization
After playing the demo I was totally stoked for this game. The graphics are just out of this world because they look so real. When you're sitting in the driver's seat your gloves look real and so does the leather seats and dashboard, you're rear view mirror reflects perfectly, the glass on the windows break in real time and it just looks so amazing. The cars handle great here, despite a floaty feel to them, but that's not necessarily a bad thing either. There are tons of races to do and lots of tracks to race on. The physics in this game are spot on and they don't miss a beat. The game has a damage system so you can check to see what you've done to your car when you pause it and it affects how the car handles as well. The menus are really slick as well since they float and spin are you select things and while the game loads it shows you your stats. There's nothing more than that to say since it's just a straight racer.
It's a sim though so Burnout and Need for Speed fans should stay away and go for Sega Rally Revo instead. The only issues I found were the load times can be a bit long, and there are only 46 cars in the game which isn't much for a racer. Despite all this you'll have a blast with DiRT and won't put it down anytime soon.