NFS Carbon is a turn in the right direction for the NFS series
The graphics are great compared to NFS Most Wanted, but they could be slightly better for this being a next gen console. For instance, the only damage you can ever get on your car is paint scrapings and a cracked windshielf. If a sequel were made I'd like to see more realistic damage, like the damage you can put on the opposing police cars, which look amazing! the cars graphcis are good, other than the traffic, which look decent, but could easily be improved. The surroundings on your map are very realistic too, including the way the pursuit breakers destruct when you set them off.
The sound in Need for Speed Carbon is great. The cars engines roar like thunder, just like in real life and their screeching tires do the same. Also, the pursuit monitors are loud and easy to understand during a pursuit to help you dodge everything the police throw at you. The only part of the sound that disappointed me was the in game musci. The soundtrack was good, but in order to hear the music clearly, at least for me, was to turn the car's noise and enviornmental sounds down to nearly zero!
The achievements are very challenging in the game, which I enjoy. The majority of them are online, which sucks if you don't have Live, but are a blast to work towards if you do! I've currently earned 32 out of 50 achievements in the game, and I'd say that about 20 of those have been from playing online. Once you get the hang of the game it's easy to get most of the achievements. The game inlocks that some of the achievements give you are sweet too, like customizable parts for your cars in career and race now modes, and special cars for those game modes too!