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  1. According to Michelin, the 245/35r18 will fit an 8" wheel. That said, it creates a f/r diameter ratio of .95. That's a little bit below the stock range ratio for winter of .97. I was assuming that since the stock sizes won't throw errors, anything within the range of ratios from the stock sizes would also not throw errors. This one, being outside of the range may throw errors. I wasn't willing to risk it. I bought the 235/40r18. If you go with the 245/35r18, please let us/me know if they fit and throw errors. -Brad
  2. Updated after initial posting... Yep. As predicted, I made a mistake. The stock size for the Carrera is 225/40 r18. I entered it as 225/30. Updating to the proper spec changed the low end of the stock f/r tire diameter ratio range. This bumped one of the original options off the list. I've updated the long, rambling detail below to reflect this. I've also updated the attached .pdf with my data So I nerded out last night and did some analysis to answer my own question. Thought I would share it with the group in case anyone else is considering the Pilot Sport 4S for your
  3. Resurrecting an old thread... I'm moving on from a set of Pirelli P-zeroes that I "inherited" when I bought my 2004 Anniversary Edition (235/40r18 and 295/30r18). I want to get a set of Pilot Sport 4S, but they still don't make the proper rear size. Smokeman909, what did you end up doing? My winter tires are 235/40r18 and 265/40r18. They don't throw any errors (ABS, PSM, or TPMS). They give up 1" in height, but 1.2" in contact patch width. For winter, that's fine. It's arguably beneficial. But for summer, I'd prefer not to give up the width. I'm considering keeping the
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