I know I'm late with this (sorry for that), but in case you hadn't seen them yet, here are the latest two official NFS: Most Wanted trailers as released last week and this week. The first one focuses on Single Player mode, and gives us some more insight on the possible performance upgrades. The second, shorter trailer is all about escape tactics during a police chase.
With Criterion's Most Wanted being just over a month away from release(October 30th), these vids show the game in a nearly-finished state, and are always nice for a game of spot-the-new-cars.