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			Can't comment on the Sumitomo.   Never drove on them.  However, if you want a great tire that sticks and is good in the rain, get the NItto's.   Nitto NT555 Extreme ZR 225/40R18  $124 each,   rear 265/35R18  $181 each
 Great price for a great tire.   I never heard of them, but when I purchased my Boxster the former owner had these put on.   I liked them so much I put them on my Jaguar XJR and could not be happier.
 Eric
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