They took a look from past two games that introduced dynamic soundtrack. (Another game from Ubisoft did also with the game called Speedbusters) EA Seattle which developed over the PC version, NFS 2 and 3 had their own original songs composed, plays in selected areas only one section of it. Players Position/Speed is depended on, also in 3 with the play mode "Hot Pursuit", when chased by cops the music is also affected.