The original Dunlop SP31 tires on my daughters car are SHOT at 20k miles. The same set that came on our 07 HCH II lasted the same. I attributed that to the rear control arm issue on the HCH II. I need to get a new set and was going to put the new Bridgestone Ecopia tires on it. They were scheduled for release on 5/25 and now that is moved back to 6/17. The tire selection in the 175/65/15 size is poor. I may go with the Yokohama AVID ENVigor. We have over 47,000 on our Gen III Prius with the Yokohama Avid S33D and they are lasting very well and get good mpg. I thought about putting 165/70/15 on it, but no tires were available in that size. Here is the page from Tire Rack with what is available. Any thoughts or ideas?