How did Michelin improve their Grand Touring All-Season Primacy MXV4?
First, they went out and asked drivers what they wanted from their tires. The overwhelming answer was that drivers want safe handling and braking in the rain.
Next, Michelin used emerging grooves, expanding grooves and more silica to dramatically improve wet grip traction. The result is a Grand Touring All-Season tire that beat the best when new and when worn. Yes, you read that correctly. Michelin is proud to introduce the new Premier A/S. As you will see in the video below, the tire at 5/32" of remaining tread depth beat a leading competitor in Michelin's wet braking test.
Impressive? Yes. However, since we're always thinking about tires at Tire Rack, we wanted more data. How would the Premier A/S fare against the Grand Touring All-Season tire with best grip, the Continental PureContact with EcoPlus Technology? Late last summer we performed our own controlled test. The Premier A/S at full tread depth and a Premier A/S worn to 5/32" of remaining tread depth beat the Continental offering.
As we shaved the Premier A/S for our test, we did notice its starting tread depth (8.5/32") is less than the Primacy MXV4 (11/32"). Does less tread depth mean shorter life? No, because Primacy MXV4's taller tread blocks will squirm more, whereas the Premier A/S' Intellisipe 3-dimensional design makes its tread more resistant to squirm. The Premier A/S and Primacy MXV4 are both offered with a 60,000-mile treadlife warranty.
Note: While the Pirelli Cinturato P7 All Season Plus ranks higher in the Grand Touring All-Season survey results, it's a newer tire with a relatively low amount of feedback in terms of miles reported.