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.

Was looking for a new set of tires for my car recently. I had a set Pilot Sport A/S 3+ and was going to have more installed but the guy at the tire shop said they had the new Pilot Sport A/S 4 and asked if I wanted those instead. He told me they were the newest latest tire so I figured why not. Immediately I noticed a lot more road noise... I mean a lot more. The A/S 3+ was quiet and smooth all around. The 4 is a tougher ride and a lot louder. Not instantly pleased with this purchase. I hope they handle well in the rain and snow—otherwise I’ll have to chalk this purchase up as a negative one and will be looking for something else in the near future.

Significantly louder than the HX MXM4's they replaced. Noise starts right at 40mph and gets significantly louder at highway speeds. Likely going to swap them out for another brand as this is the only Michelin tire that fits 245/50/R17. Tire handles great but I just can't deal with the noise.

I purchased these tires so that I could drive my Vette so I wouldn't be worried about late season mountain drives. I have just over 2,000 miles on them and couldn't be more satisfied. The ride is great, the handling seems to be better and there's virtualy no road noise.

I purchased a set for a our BMW approximately a month ago looking for a set of all season performance tires which we could also use in light snow but enjoy during spirited drives in the summer without the hassle and expense of 2 sets of wheels/tires.

I bought mine for an Audi A6 3.0T Quattro when the car had 52k miles on it. Absolutely loved how they handle on wet and dry roads. However, super disappointed with tread life. I have 81K on them now and one tire is almost completely bald, and the others might have 2/3K left until they look similar. Not an alignment issue either as they were rotated and tread is worn evenly. We swear by Michelin tires, and love the Defenders on our Yukon, which is why I’m being fair with 4 stars. But I will probably consider something else to replace these Pilots for this particular vehicle.

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.

Great tire. Extremely predictable and high levels of grip both wet or dry. Very quite on the edge of it's grip. Tread life is also amazing. Other tires don't last as long. I drive hard and I don't do silly things like smoking the tire or donuts in the intersection. No sure if it is a thoughtful engineering thing but I like how you can always tell it is time to change the tires when the ride gets rough and noisy. Even my wife who doesn't pay attention to these things notice it but I don't tell why it is so noisy and she can feel how rough the road is. The crazy thing is the grip is still there. Well as long as there is yread but I am still careful in the rain because the tread depth is there so I make sure I have room to correct.

Just upgraded from run flat p zero and I instantly felt the diff in ride and very pleased with these tires so far and mine r very quiet. Will update if anything changes but my first impression I couldn’t be more pleased Worth the wait on getting these because of all the back orders going on

These tires lasted me 57,000 miles on my Tesla Model 3 RWD. Would probably last another 2500 miles but changing before rainy season in california. Tires are very grippy in rain and dry, but the noise and drone of tires is a bit excessive. Overall I love the performance, safety and longevity of the tire so decided to get a second pair.