Michelin has built a strong reputation with their Pilot Sport A/S Plus model, while Bridgestone has offered the Potenza RE960AS Pole Position for the past few years in a non-run-flat option for sport cars and sedans with very good success. During "Testing the New Michelin Pilot Sport A/S Plus," both models offered excellent wet and dry traction with low road noise.
By adding reinforced sidewalls, as well as other features unique to a run-flat capable tire, both brands can now offer Corvette owners cold weather traction without having to worry about being stranded in the event of a tire failure: the Michelin Pilot Sport A/S Plus ZP and Bridgestone Potenza RE960AS Pole Position RFT.
The all-season rubber compounds in both models can remain flexible as temperatures get very close to freezing and as a result offer a modest improvement in durability over the Original Equipment tire's compound with only a small sacrifice in dry grip when driven "enthusiastically." During comparisons, we haven't found a noticeable change in cornering and handling characteristics for everyday and occasional spirited driving compared to the O.E. tires.
Michelin Pilot Sport A/S
Bridgestone Potenza RE960AS
Pole Position RFT
To learn more about the capabilities of run-flat technology, read "Run Flat Tires."