-Im_Magicly_Delicious-
There both awesome, game's i liked the police chases. In most wanted more (as in hitting, the cop's) it just seemed better in most wanted.
Actually, it's exactly the same. Carbon's base story focuses more on actual races than running from the cops. But, you can do everything in Carbon that you could do in Most Wanted. Such as accumulating a bounty, running from cops, avoiding spike strips, etc.
Believe me, I've played them both extensively. The impact physics and animations are exactly alike.