Carrier/rack Problems of BMW 540

I purchased four (4) michelin pilot alpin pa4 tires in 245/35/20 for the front and 275/30/20 for the rear. I subsequently hit a pothole and had the front driver's side tire blow out. I then had the tire replaced. A couple months later, I hit a pothole on the highway with the front drivers side tire, which again caused the tire to blow, but this time damaged the wheel beyond repair. The passenger side tire was also found to have two bubbles in the sidewall even without having been struck by a pothole. I have hit potholes with the same car with different tires and have never had a blowout or wheel damage. Considering this has happened twice, I believe these tires are defective and unsafe. I have attached photos of the second blowout. I have also attached the invoices from the two incidents. The totals do not include the total damage as indicated in the itemized breakdown, as I did not yet replace the cracked control arms at $1,005. 76.

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