Hey guys,
I'm not 100% sure if this will work as I have not had the chance to test it myself but there is a possible option to do this. First, open your media player(which ever one you use) and start creating a playlist. Once you are done, save the list. The media player should also save a file with that playlist name( with Windows media player it save it to C:/users/%username%/appdata/local/Microsoft/mediaplayer).
Right click on the playlist you have saved and copy the file. Place the copy into the NFS folder(where the other tracks are contained). Load up the game and through the in game options see if it will allow you to select the playlist you have added.
Let me know if this helps.
Rick.
