Hey gang. New Prius owner here. I'm a new car owner also, and have very little experience with tires. I have tried to sift through the hundreds of tire threads here (including this one) at PriusChat and am more than a little overwhelmed. When I bought my car today the dealership said they were going to replace the tires (getting low on tread) with a set of "original Yokohomas." Funny because earlier when I spoke with the the service department and asked what they prefer, they said everyone there "were all Michelin guys." I don't know if the dealership is trying to get away with the lowest quality/least expensive tire or if I should be requesting an upgrade--the problem is that I don't know what IS an upgrade. So if it comes down to my dealership offering Yokohoma or Michelin, what would you recommend? I am not terribly worried about losing a few MPGs; I would rather have a smooth ride.