We're due for a new set of tires for our X3. The car has 19" M rims with 245/50-R19 105V Pirelli run flat summer performance tires. After almost 20K miles they are down to the minimum tread. We don't get much snow here in Portland, OR but we do get some snow and of course we get lots of rain, too. So we've decided to switch to all season tires. There are surprisingly few run flat tires in the right size and load rating. The retailers in my area don't stock these tires. The dealer does. My dealer has a Pirelli P7 A/S in stock and a Bridgestone (I don't recall the model) in stock. I've had good luck with Pirelli tires on various vehicles. However the Bridgestones are cheaper by about $300 for the set. Plus they have a slightly higher rebate. Any experience with the Bridgestones you'd care to share would be appreciated. $300 on a set of these tires is not spare change but it's not a deal breaker. If the Bridgestones are quieter, handle as well as or better than the Pirelli tires I'd be willing to give them a try. The last set of Bridgestones I had was on a '82 Subaru and they were awful but lasted forever. On the X3 awful is not an option. TIA.