I am also in this boat. I have 37k miles on the stock PS2s and they are about due for replacement. I have an 09 sedan, and I believe they have a bit narrower rear wheel than the coupe. What is the largest tire I can fit on the stock sedan wheels?
I was also looking at the MT 305/35R19 but I don't think it will fit.
I only drive the car when it's nice out, never in the wet. I have been fairly disappointed with the grip of the stock tires, and I would like something that hooks up better. I do intend to take it to the strip a few times a year.