I have 2 BMW, E92 335i and X1
I have 2 BMW, E92 335i and X1 and they have both runflat tires for the summer and the winter and I never had any issue with them I had 2 or 3 flats and I was able to repair them my self at home with basic tire plug repair kit (10$) and I was av=ble todo it with removing the tire. I removed the nail and put the plug!. When driving 10 or 15 miles on the tire even without air, there is no damage to the tire and it's a eay fix. Of course the dealer will tell you to replace it...they are here to make money. But the most important thing to remember it's the safety...who want to pull on the side of the highway with a major risk to be hit by a car, especiallyn during the winter with kids on board...