I replaced the original tires on my 2011 Z06. I noticed an immediate smoother ride and much less noise in the car. Straight line acceleration is very similar even with the heads and cam mods. I am not easy on the car and drive aggressively when I take it out. I was considering a higher performance Michelin tire but am pleased with the All Season 4. How long they last is TBD.

I have an Audi SQ5 2023. I switched from my OEM Pirelli P Zero. I can report that the new Michelin are way louder above 60 MPH. They don’t corner as well. They are good under braking. I will report back when I have more miles. For the cost I wish I had gone to the Pirelli, the road noise is disappointing and unfortunately I do a lot of highway miles.

I’ve previously owned the AS3 and AS3+. These new AS4 are noticeable better. It handles and grips just as good as previous models. The improvement is in the noise and comfort level. Noise being more muted, meaning in a more comfortable ride. It’s an early assessment but hope the durability and longevity will be impressive. We will see.

Replaced the old Stock Pilot Super Sports on my ‘19 Z06 Convert with a fresh set of Pilot Sport A/S 4’s. Absolutely love them. Pilot Sport A/S 4’s are rated for hot and cold ambients, dry, rain, and even snow. The perfect tire for northern state roads and highways. The Ackerman effect with tight turns, hydroplaning on rainy roads and pebble showers on the bottom of the car common with Pilot Super Sports is gone. The A/S 4’a are definitely quieter than the Pilot Super Sports. The A/S 4’s may have a bit less traction on hot dry track days but I’ll never miss it. I’d much rather have the extended driving season with the A/S 4’s . Thank you Michelin!

Why dont they make this in a 225/50/18 I just got a 2017 subaru legacy 3.6R Limited and they made the pilot sport a/s 3's in that size in a W speed rating, I'm looking for new tires to improve the ride and handling and everything about my car, but why should I go with a michelin if I have to settle for the old technology in the a/s 3? The a/s 4 is the newer successor with more and better technology, I got a subaru with all wheel drive so I can run a sportier tire all year long with my geographic area with occasional snow, I might just have to settle for an all season tire without a sport focus, which I dont want to do, I want an all season with a sport focus, but why should I go with an a/s 3 when there is a newer tire in the a/s 4? The answer to that is because unfortunately the a/s 4 is not available in my size, and I don't want to go with a nonfactory size either, troubling matter for a loyal michelin fan like myself, just wondering if their are plans at all to bring the a/s 4 to the market in more sizes at all? If so, i'd be interested in possibly getting some, have not actually bought the product, my ratings are just based off of my experience with michelin products in general, which have been pretty good, really honestly interested in either the cross climate 2 in the 225/50/18 in a v speed rating or higher or the a/s 4 in a w speed rating or higher, I have no use for the cross climate suv tire in my size which is designed with too high of a load rating for my sedan which would ultimately only result in an unnecessarily harsh ride since my vehicle is somewhat lighter weight, not much tire support for my vehicle in this size from michelin unfortunately, at least no tire support in the tire models that I want :(

I bought the tires early March so far so good. I've had 2 days with light snow, 1 week of rain and a few mild days. No complains. Just bought a second set for another car + Pros: Grip, Stability, Braking, Cornering, Tread Design, Quiet, Steering Response, Visually Appealing, Comfortable,

I first owned the Michelin Pilot Sport AS3, then my tires wore down, so went to the Michelin Pilot Sport AS3+. Now I'm currently using the Michelin Pilot Sport AS4. From my very early and initial impression (under 50 miles), these tires are the best of the group thus far. I found the AS3 and AS3+ were almost identical in tread pattern, driving, comfort with a slightly higher noise level. The AS4 feels like a significant upgrade. Firstly its an entirely new tread pattern from the past 2 models. A variation of sipe thickness and patterns. It looks like it will grip better. Briefly driving on both dry and wet roads, highway and city, it delivered nicely. It already felt great with the AS3 and AS3+, so I'd expect the same with some refinement. Personally, where I really found an improvement is the noise and comfort level. This is deemed an ultra-high performance tire. Its sporty, athletic and low profile. The handing is expected to be superb and usually the tradeoff is comfort and noise. I don't know how Michelin did it, but I've found the noise level lower and the comfort level higher. It rides much more smooth and soft with less tire noise than the AS3+. My car handles even better and I feel confident with my rear wheel ride. The only concern I have is longevity and durability. Both AS3 and AS3+ were sticky tires, so they wore down quicker and sustained nail damage. I'm expecting the same with the AS4 as I believe the tire compound is the same or similar to the previous 2 models. Plus in the end, compromises are always a result of changes. I hope I'm wrong, but time will tell. Its already a superior tire and I've had a nice history of use. Michelin, if you could make a tire with added durability (less chance of nail, staple, debris causing tire damage), you'll have a true legend! In the meantime, well done on the AS4.

I bought these tires to replace the Pirelli's on my Ford Explorer ST and they make the drive to Montana (over 1,000 miles one way) very pleasant! We drive multiple times from California to Montana a few times a year and absolutely love these tires. I'll definitely buy these again when they need to be replaced.

Had to replace the tires on my 2018 Civic Sport and I can't believe the difference. I previously had some “high-performance” Falken tires that weren't bad but after a couple days with the Michelin Sport A/S 4s I finally understand. This is the first Michelin performance tire I have ever driven on and my car is a completely different machine on these tires. The level of grip is superior to any tire I have ever had, even in the rain. My car feels like it is floating until I cut the wheel and suddenly it becomes glued to the blacktop. I am a very aggressive driver and understand the value of having tires you can trust on your car and I love these tires!!!

I've installed the Pilot Sport A/S 4 on my 1995 Camaro Z28 I've own this car since new, over the 26 yrs of its life I've had several different tires. I can honestly say that this tire lives up to the Michelin standard, awesome performance in wet traction excellent overall. If you have the opportunity to purchase these tires in your size if available just do it you won't be disappointed. Only negative thing about this tire is the availability in all sizes.