Need for Speed: Most Wanted appears to be getting another round of downloadable content. Sets of Trophies for the game have given the names of three previously unheard-of DLC packs.
PS3 Trophies lists a Terminal Velocity Pack, Movie Legends Pack, and NFS Heroes Pack. The Terminal Velocity Pack references five new cars and new unlockable parts for each like the Ram Chassis, Drift Tires and Jump Nitrous. The others aren't quite as specific, though the Movie Legends Pack does have a Trophy called "Gone!" if you escape the cops in a GT500--a reference to the Nicholas Cage classic Gone in 60 Seconds.
Shacknews has contacted EA regarding the packs, and will update as more information becomes available.