If I read that correctly, the trouble with racing games being a problem is they no longer have the rights for the songs or having a partnership with the publisher so it may take longer to get their permission.
Depending on how the songs were packed initially, they might not be able to replace them. It would be nice to allow the users to select their own songs to be used, but that would take an external app to do the manipulation.
When rockstar re released san andreas it was without some of the songs, they releasd a patch for the original release and they removed the songs from the original (what were licensed to end users)
http://www.rockpapershotgun.com/2014/11/10/gta-san-andreas-steam-removes-songs/