I own two 2018 dual motor Model 3. One of them the Rear tire worn 10x faster than front tire and the other one worn about 2x faster. Both car use same brand tires and rear tires worn evenly. Switched car often and drove at same style. Not sure the reason. Service technician looked at it and suggested no alignment is required. My current tires are Pirelli CINTURATO P7™ ALL SEASON PLUS, rated 70K miles. The rear tire had worn down to 5/32 in around 5000miles. The front tire still maintain at 10/32. Is anyone has the same issues and the cause suggested?