The first time my tire and rim was destroyed it was while driving on the intestate .I was not driving fast as a matter of fact I was going below the speed limit, because if I was going fast my car would flip and who knows how would it end. Anyway I heard a thud in my from tire and it immediately started to wobble before I could stop. I eventually stopped and was surprised to see the rim split in the seam and the tire totaled. The second Time I have the same problem ,I was on the interstate again and fell my car wobbling again ,this time it was my rear tire and was surprise to see the entire tire split all around in the seam again . My conclusion is that these tires are defective and Toyota should replace all four. For now my Scion is parked, because I do not know how to handle this problem. I will have to replace all four tires with a different brand. The types of tires that come with my scion is Michelin primacy hp tires and I can attest that they are not safe to used on a car.