Terrible! These tires were OEM on our BMW 535xi/M sports. In 14 months of driving, 5 of the tires have either bubbled or burst. They will not tolerate potholes or poor road conditions, making driving in the Northeast very difficult and unsafe at times. The thrill of driving a BMW is completely gone - we must drive slower and constantly look out for every imperfection in the road. Every day we do a visual check to see if any of the tires has started to bubble. BMW has been very disappointing through all of this - uninterested, unhelpful, uninformed, unsatisfying - giving us conflicting information on alternative choices for these tires. This experience has taught us that we will never own another BMW. Goodyear, on the other hand, has been very helpful. They used to warranty the tires, and provided reimbursement for replacement due to road hazard damage during the first 12 months based on tire condition. However, they stopped doing this in January, 2013. We were fortunate that Goodyear reimbursed us for the first 4 tires. Beware of BMW's with run on flat tires!