Thus far, these tires have been incredibly disappointing. I did a ton of research before buying these to replace the OEM runflat tires for our BMW, and have had to replace both the front and rear tires again within 18 months. And good luck trying to get any warranty coverage on them. We put rear tires on December 2011, and with less than 15,000 miles of moderate highway driving, these tires were absolutely dangerous last time it rained. The car was hydroplaning all over the road at any speed over 45 mph. We were very careful when we replaced them last time to get them Road Force balanced, to make sure there were no problems with uneven tire wear. Didn't help at all. Really at wits end trying to find tires for this car.