I have a 2011 550i with ~15,500 miles, the tires have ~ 9,000 (I run winter tires). The tires are Goodyear Excellence RFT OEMs. I live near Chicago. I went to Black River Falls, WI for the Memorial Day Weekend. Sometime in the first day, I managed to bubble/tear the left front sidewall. The opening was about two inches long and had a gaping hole about an inch wide. The exterior rubber was torn through, but the interior "pressure vessel" appeared to be intact and the TPMs seemed happy enough ... no leaks. I called the dealer to give them a heads-up that I'd be in first thing Tuesday, if possible; if the tire didn't make it South of Madison, there was a BMW dealer there I'd hit. I made the trip home without incident, albeit a little slower than usual; I've never run on RFT tires and didn't know what to expect. I made it to the dealer and got new tires ... yes tires, because apparently the left rear also took a hit and was also bubbled (but not torn). I actually ended up with four new tires because of some other issues. Fortunately, I'd bought the "Wheel & Tire Insurance" which has apparently paid for itself in one event.