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 ordered new wheels for a Mercedes Metris van but the supplier noticed they were slightly damaged before shipping them. I ended up selecting a slightly wider wheel and noticed the Pilot Sport All Season 4 tires were available for this wider wheel. I bought them since I’ve run through a few sets on the Porsche and they were excellent. Now, do I need tires speed rated at 186 mph on a van - no - but for just a little more than a lesser tire I picked up some tires I feel confident with, especially with passengers. Ok, it’s overkill but they looking freaking great!

These tires are a huge upgrade for me. Comfort, handling and traction are all greatly improved. It’s the one repair I’ve made to my car that I can feel an immediate difference with. They seem durable so far, only been a week and two days, but I have noticed they aren’t all that quiet. That could be do to the materials used to build my vehicle too though.

I purchased Top of The Line Tires $$$ Expecting Top Quality & Performance. (You Get What You Pay For) As for the performance I WAS very happy with the stopping, road handling (in all weather conditions) & an over all smooth quiet ride. However the Quality / Tread Life is absolutely horrible! 3 years and only 13,000 miles later and I NEED NEW TIRES ALREADY!!! Completely UNACCEPTABLE!

I have the cup tires on my GT3, the Ice tires on my mazdaspeed6. And so I bought these for my '18 Model S 100D. They replaced the "quiet" Goodyears OEM at 23,500 miles. After installing the Pilot Sports, I immediately went to the Tesla Service Center in St. Bruno , Quebec for a wheel alignment. I have never touched a curb with the wheels but the car needed an alignment. At this point they are about as quiet as the goodyears. They seem to handle bettter too, but the wheel alignment helped with that too. I have never had a bad experience with Michelins. Even though I purchased them last Winter I just had them installed.

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

Mounted these tires on my Mazda 3 GT in May of 2021. Got about 7,000 on them now and I have been well pleased with their performance. Seems I chicken out before these things reach their limit as I have yet to have them squawk back to me during sever cornering, severe stopping, severe acceleration, ( well it's a four banger should just call it snappy acceleration).The performance is just outstanding in all conditions. I would like to find some fault with them but I have nothing to complain about. Good job big ol squeezy Michelin Man.

I have the Michelin Pilot Sport All Season 4 installed on my 2016 Mercedes S550 4Matic with staggered 19" AMG wheels. My initial impression was that the steering and braking felt more responsive with the Michelin compared to the competitor brand they replaced, but the ride wasn't as quiet or as smooth as I expected from a Michelin on an S-Class. The next morning, I leveled out the air pressure in all 4 tires to my preferred PSI which restored the comfort level. After a few weeks and many heat cycles, there is no longer any noticeable noise. More importantly the tire provides an insane amount of grip on dry and wet roads. The Michelin Pilot Sport All Season 4 paired with all wheel drive inspires confidence and encouragement for those of us who enjoy spirited driving.

BMW M235 My previous tires were Pilot Super Sports which I found to be fabulous in traction, ride and response. But, living in the snow belt, the lower temperature season can really shorten the time I have them on the car. So when I needed a replacement I thought why not go with the AS4 , maybe loose a little performance but enjoy a longer time with no snow tires on. I've now driven about 600 miles with them. I find them as harsh and uncomfortable as the RFTs that were OE on the vehicle. Jarring really even on the softest suspension setting. Further my dealer could not balance them for a smooth ride after 3 tries on the Hunter Road Force. I will say that after the break in, they had good traction in dry and wet. Never got to snow. I'm calling uncle and swapping them out for another brand.

These were quite a bit softer and quieter than the Pilot 3 + tires removed after 40,000 miles. The Pilot 4 AS felt initially like it wouldn't be the same in handling as the 3+ AS but that was totally wrong. They handle great. I would definitely buy them again.