Just took delivery of our Prius C and am disappointed with the ratings tirerack.com gives the OEM tires. I am going to replace the Bridgestones this week with the best reviewed tire available. Does anyone have any suggestions? I am thinking about the Prielli P4s. Has anyone replaced their OEM Tires with a higher quaility tires? Discount Tire has already agreed to give me $50.00 per tire for the OEM tires. So 200.00 off the new set works for me. Thanks in advance....the Bridgestones have a pretty low rating across the board.