I got pulled over yesterday in the '13 M5. Was calmly heading to the dealer for a quart of oil.
Said he paced me "at about 50". I was going with the flow of traffic. Pain in the ass.
Decent guy though, let me go with a no proof of insurance ticket. So I'll just waste a few hours going to the court and showing proof. I'm probably lucky I didn't have the card on me or he would have probably ticketed me for speeding. They always want to hit you with something. He was trying desperately to get me for no plates but the car was too new