1st off - Hi - 1st post as a new member! Relocated Brit now in Seattle with a 2011 M3 looking for some help. My M3 came without parking sensors - I'm used to them from the cramped UK and would like to retrofit them back on to the car. My Dealer tells me that they can't do this but I'm intrigued that it isn't possible. Can someone knowledgeable tell me why this isn't possible? I did a search on parking sensors but nothing showed up.