Digest this:

G35C with the sports pack is same suspension as the Z.

Skid pad info:

G35C with PILOT SPORTS .91g
Z with Shitenzas .88g.

! ! ! ! ! !

How do you determine the wear factor of the tyre?
Think I saw somewhere that a number somewhere on the sidewall is an indicator ?

Frizza

 

Frosty - the American "tires" must have the UTGQ rating imprinted on the tyre sidewall. This contains the treadwear rating, but keep in mind that this treadwear rating cannot be relied upon to compare treadlife between manufacturers. You can however, use this rating to determine treadlife of each type of tyre a particular manufacturer has in its lineup.
For example, Bridgestone indicates a treadwear rating of 140 from the Predendza RE040 and 220 for the S03. So in theory, the S03 should have an extended treadlife over an RE040 if driven on the same road and in the sam manner, same car / conditions etc....you know what I mean.

No doubt the Pilot sports are brilliant tyres as are the S03's, Pirrelli's etc. You'll find there is very little between the top half dozen ultra high performance tyres.