Excellent, Excellent, Excellent! Love the game and one you won't finish any time soon!
Graphics? Sharp, excellent in HD. Still great without HD but with they look amazing. The detail inside the car is precise and with each livery you choose theres a different suit that you're driver wears. Good Points? Well the gameplay, graphics and the whole game really, theres just a few problems that could have done with being sorted out however they don't make you not want to buy the game. Also the ammount of cars avalible.
Bad Points? Just a few, loading times and the fact that it's not Colin Mcrae it's Travis Pastrana :S Not sure what happened there. Live could be improved to be honest but it's still playable. Overall Conclusion? If you like racing games or offroad then buy it. However if you're not that at racing games then then the handling could be diffecult to grasp, so rent it if that concerns you. We'll just have to see how Sega Rally meausres up to Dirt.