I just finished testing the Firestone Precision Sport, Michelin Pilot Exalto A/S, Sumitomo HTR A/S P01 and Yokohama AVID ENVigor High Performance All-Season tires.
On our 6.6 mile road course, the weather conditions were light rain so the roads were wet which made it difficult to test for noise levels. I found the Firestone to be the best handling of the four and I was also impressed with its ride comfort.
After the run on our test track I pushed the four tires to their limits on a wet track and found the Sumitomo HTR A/S P01 to be the best in all areas of wet handling and braking.
Overall, I'd place the Sumitomo first, Firestone second, Yokohama third and Michelin in fourth.
Watch for complete team test results online.