Weird? Obviously way it's genuine (the car, not the photos) not least because its a US spec car? Wonder if it's some TV thing, or maybe an earlier poster was right and someone's using it as a way to get through traffic without risking being accused of impersonating a police officer?
In fact due to budget cuts (and to a certain extent public perception) the police in the UK are being restricted to more standard Vauxhalls and Fords, so there will be far fewer police BMW's around generally, and certainly zero 550i's!
Space Grey/Cinnamon Brown F11 520d SE with Sport Auto.
Pro media pack, visibility pack, sports steering wheel, heated seats, lumbar support, ambient lighting, USB interface, 18" wheels, parking camera, auto tailgate, sun protection glass.