Premium Package means you have them. They work in a similar was as the rear view mirror however for safety reasons they don't dim as much.
2013 X3 35i, Dealer Delivery July 2012
2011 550i M Sport, European Delivery May 2011
On Order: 2014 550i M Sport, European Delivery May 2014
Gone, but not forgotten:
2006 530i, European Delivery June 2005
2008 335i Coupe 6MT, PCD November 2007