I'm not saying this is real one way or the other (and I know others on here say nope), but there do seem to be a few posts in the threads below over on Bimmerforums in the E39 section...you be the judge:
ASC+T/DSC Test: DSC/on, DSC/off, DSC/easter egg mode - Bimmerforums - The Ultimate BMW Forum
DSC Easter egg mode is awesome - Bimmerforums - The Ultimate BMW Forum
At the end of the day in could just be folks imagination...
ASC+T/DSC Test: DSC/on, DSC/off, DSC/easter egg mode - Bimmerforums - The Ultimate BMW Forum
DSC Easter egg mode is awesome - Bimmerforums - The Ultimate BMW Forum
At the end of the day in could just be folks imagination...