I have been a Michelin owner for more than 40 years and have only had 2 issues in all that time. One was a bent suspension arm that tore 2 tires to shreds. The other was a 3 inch spike that blew a tire, neither of these were Michelin issues and have trusted the brand forever.

Upsized to 18" wheels & ride is even a bit softer than the AS3's on the 17" wheels. Steering at low speed is a bit heavy with the larger contact patch than the OE 215's. Good grip cold, much better when warm. Side wall flex is a big improvement in cornering.

I am 60 yrs old and my wife is 67 yrs old. We bought a set of these tires 2 yrs ago for our Audi A7 and have 30,000 miles on them. They are already worn out to the red replacement stage. These tires are such a disappointment. I have always tried to buy Michelin but will be looking elsewhere now.

I have 2 sets of these tires, for my 1993 Corvette ZR-1 and my 2015 Challenger 392. Excellent grip in all weather conditions that I drive in (I rarely see snow, but frequent heavy rain and temps below summer tire ratings) as well as quiet and comfortable.

The specs and real performance of these tires are incredible. 255/35R21/XL 98W Front - 275/35R21/XL 103W Rear. I know My Tesla MYP can outperform 97% of the vehicles on the road. The car can do 0-60 in 3.4 seconds. Most likely your non-Tesla car cannot. I put it to the test on my daily 55 mile commute. The tires have a lot to do with this. The heavy EV and high speed rating are brilliant technology. Fully confident all weather rain/sleet /snow/ice at very high speeds. Hey Michelin Bring back Premium Touch.. love it

I bought these tires 5 days ago and they flat spot overnight. I’ve never had a tire do this to me in my life. I had high expectations for these as i have always wanted Michelins. The issue goes away when the tires warm up but the colder it gets the issue doesn’t seem to go away once it warms up.

Installed these Pilot Sport A/S 4 about three weeks ago and coming from a previous set of the Primacy MXM4 I have to say ::::) WOW!!!! For the past two weeks we've had terrible rains in South Florida and these tires have performed outstanding, in heavy rain, light rain, no acquaplaning whatsoever. When conditions dried the tires performed awesome. The sidewall and overall structure of the tire is a bit firmer, which I like comparted to Primacy and there is no squishiness at all! The noise is very much comparable to the Primacy, I would say a very small fraction louder but not noticeable. These tires were a great buy for sure. 235/40R19

I bought these today 1/25/21 at 12pm and drove for approximately 100 miles and boy let me tell you. I came from Pirelli scorpion run flat tires and it is a night and day difference. These Michelin’s are on the money. What a smooth floaty drive on my 17’ X5 MSPORT. These tires are very sticky as I hear them when I roll down the windows. Very responsive steering improvement from runflats. These tires are everything. I feel much safer having my family in the car. Thank you Michelin.

I no longer engage in terribly spirited driving (its been 25 years since racing school), but I still appreciate a superior sticky tire. I have also gained a fondness for a quiet , smooth ride, which you normally don't expect with a performance tire. I was therefore pleasantly surprised at how much these tires delivered all these qualities with so few of the usual compromises. For my purposes, this was an excellent choice, with much more grip than the OEM tires, and equal smoothness and very little more road noise. Unless you think you want a super stickey tire ( and are willing to pay the price in dollars and discomfort), I recommend the A/S 4. It looks like the new standard for an all season performance tire.

Michelin finally started making my size again for 04 SVT Cobra Mustang. They quit making an A/S for my car back in 2015 and I have to put on a BF Goodrich which bounced like rubber balls on my car, I was highly disappointed. I kept asking Michelin for my tire back again. Finally they started making these in Jul 2020. Had them put on a month again and my Mustang rides and drives like new again. It handles good and rides smooth, very little road noise. Thanks Michelin, I worked at Michelin for 36 years so I know a lot about tires and These are GREAT!!!!