yeah, it was killing me 2 days without the ride. If I thought the dealer could have really gotten a factory tire I would have done it. In theory the trade off is no low rolling resistance, but in theory a better tire and hire speed rating. Ironically the car never threw a TPMS error until I started driving with the new tires. I had checked tires 2 weeks ago and stored the pressure so I assume the rears now have a slight diameter difference that the car picked up.Glad your back up and rolling.