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Below is a link to a AAA report comparing wet traction when tires are new versus at 4/32". The report is fairly current from June 2018 and includes two models of particular interest -- Pirelli P7 Plus and Michelin Premier AS. Granted, the tests are on a 2017 Camry but still interesting nevertheless. The P7+ and Premier are within 5-ft of each other in wet stopping distance when new but the P7+ needed almost 60 feet more distance to stop at 4/32" compared to the Premier AS. I never felt the P7+ was lacking in wet traction but these results are astonishing. Wet traction is not the defacto criteria for tire purchase but it seems the P7+ and Premier AS are already very close in all other performance aspects. I don't like that the Premier AS is more expensive and starts at only 8.5/32" when new. However, after seeing these results I might just switch to the Premier AS next time I need tires and experience the difference for myself.
No surprise really. Remember that the Premier has that technology where the sipes are designed to retain grip through the tires lifespan. If you look at the wet distance when used, the Premiers stand out as having very short distances.
10-03-18, 09:38 PM
AAA Worn Wet Traction report P7+ vs Premier AS
