Fractionally? You should do some research on the Cup's that are unique to the Z06/ZR1 by Michelin... 1/32nd less tread than their standard Cups... less 'grooves' overall... much closer to a dedicated track tire now. You're correct on the original PS-Cups... but not the new round offered exclusively for the Vette.
Dave
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2010 ZR1 3ZR Wht/Blk 10.7 @ 132
2011 C63 AMG P31 Car Blk/Blk 11.8 @ 117
2010 Nissan GT-R 10.8 @ 129 (Sold)
2008 Lexus IS-F (Sold) 12.5 @ 113 / 2008 Shelby GT500 (Sold) 11.3 @ 126
2008 e90 M3 6MT 12.8 @ 111 (Sold) / 2006 e60 M5 12.4 @ 114 (Sold)
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