My rear tire blew out, and when towed to Tesla they explained to me that back tire that blew was a narrow front tire on a narrow rim, and there was also a wide rear tire that had been mounted on the front. Of course, my Tesla is a P85D with staggered wheels/tires. The Tesla tech said that incorrect tire placement would torque the car to one side. What I had noted was the tires slipped when accelerating. Also, the tires wore out very fast and then failed near the end of a 350-mile trip and stranded me on the side of the freeway entering the DFW Metroplex during rush hour traffic. I tried to air the tire, but apparently the tire was blown out on the side. Tesla wanted to install 2 new tires because they could not get 4 new Michelin Pilot Sports (21-inch), as they were sold out nationally. I told them no because I did not want 2 new tires and 2 that were essentially in bad shape due to 13,000 miles with the incorrect mount job. Discount Tire found 4 Continental Tires. I had to go to the store and get a rear one and paid Tesla $55 to mount the tire. Then, since my right front tire had a big bubble on the sidewall, I drove as slow as I could 18 miles to the tire store to mount and balance the full set of new Continental tires. I'm on my third day now, waiting to get my car, and have been stranded all that time at great expense and loss of time. I'm wondering what action others would deem appropriate.