Tire Sidewall problems of the 2004 Volvo S60

Delamination of bridgestone blizzak 15 inch snow tire at highway speed, rear left tire. No injury or damage but tire tread completely separated from sidewall as one unit like a donut. 1 year old tires with less than 10,000 miles.

I own a Volvo S60 and have under 30,000 miles on the vehicle. Yesterday I sufferedthe second blow out on the continental contitouring contact tires, 215/55r16 93h ch95. I am concerned for my safety and the safety of others as these tires appear to be defective with two blow outs in under 30,000 miles. The tires are rated to 60,000 miles.

Tires sidewalls.

Driver's side front tire blew out while traveling at 55 mph. Driver side rear tire was also defective, it had a bubble on the sidewall.

Bought Volvo S60 awd from Volvo of danbury July 2004. September 1, 2004 noticed a buble on the rear drivers side tire. On 10/25/2004 my wife had a blow out on i84 on the front drivers side tire while driving on a newly paved highway road. Nearly injuring herself and cars around her on the 3 lane highway she barely made it over to the breakdown lane. The entire wall of the tire was seperate from the rest of the tire all the way around. The tire is a pirelli p6 fourseasons tire. P235/45 r17. Once the doughnut tire was put on I immediately drove to the nearest Volvo dealer where the car was bought, and they would replace the tire but I would have to pay for both tires at a cost over 300 in total. I stated that the car was brand new and only had 8k miles, and they said I would need to contact pirelli. I called pirelli and they said I would need to contact an authorized dealer for inspection. I called the authorized dealer and they said there was nothing they could report because all was due to road hazards. My wife did not hit anything, therefore these tires are not made for drinving on normal roads especially with only 8k miles on the tires. I put a complaint into Volvo corportate and they have not returned my call. My concern is for my wifes safety and the financial burden of replacing new tires especially in a car that is known for safety, and for the amount of money we paid for the car. No one is taking responsibility and Volvo keeps putting these tires on their cars that are going to cause a serious accident to either my wife and or the cars that are driving next to her.