I am a big fan of runflat tires since I have no desire to be stuck on the side of the road because of a tread area puncture. Have been running runflat tires on my Mini Cooper and saved me a couple of times. Ride is typically a little stiffer with runflats because of the heavier sidewall but not significant in my opinion. I see that TireRack is now offering the M3 tire size in runflats by Bridgestone. Is anyone running runflats? thanks