Around 6 months after the release of NFS:U in Japan (Dec 23rd 2003), there was a revision released as "Need for Speed Undeground J" under the EA Best Hits-label in Japan only. It's supposed to feature a "graphic mode" (new, japanese specific, car colors?) and some other changes, aimed at the Japanese audience.
Does anyone know the exact differences between this and the original Western version?
Also I don't think the J-version was ever released for Xbox and GameCube, or was it?