I just found out some interesting information due to a customer inquiry. Apparently the new model tires have a speed rating based on overall ratings. For instance the Pirelli P7000SS that I have been offering in the wheel/tire packages have a "Z" rating. However, after discussions w. Pirelli they have a further rating of "W" --which translates to a 168mph speed rating. The older P7000SS of several years ago, which some retailers still have--not me--have a speed rating of Z or 149mph. Finally, the hi-performance P-zero's, although Z rated, come with a minimum rating of 'W' and some have a "Y" rating which is still higher. Just thought I'd let you know in case you're doing some hi-speed driving!! Gary.

Hi Gar...it's me again.<p>Isn't "Z" rating defined as anything over 149 mph? And "W" rating is not to exceed 168 mph?<p>"V" used to mean not to exceed 149 mph...with "Z" covering anything over 149. But the "governing bodies" added W and Y...<p>Maybe the older Z rated P7000s were re-classified to W under the new rating system. Or do you really think there's a difference?<p>- Josh<br>- '98 A4q 2.8<br>- '72 911T