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've got a 2009 Jaguar XKR Portfolio Convertible with 69k miles. This is my third set of tires. My first were Yokohama's....not a bad tire but in my opinion, they don't compare with the Michelin Pilot Sport AS4. I'm on my second full set of 4 Pilot Sports. When these wear out, I'll buy another! They handle extremely well, the ride is wonderful and they lasted about 45,000 before needing to replace. I'd absolutely recommend these for your sports car!

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!!!!

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’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.

These handle really well and helped me out a lot with the big rain we get in Florida. Unfortunately, 2 tires are down to 3 and 2/32nds. 2 Tires are down to 4.5/32nds. I have about 20k miles on the tires and drive on the highway mostly. Florida roads can be pretty rough since they get baked, so I imagine this is a leading cause. I'm hoping to get some warranty on the 2 tires that are near the end.

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!

Didn't even last 18k miles. Purchased in Aug 2021 and put 18k highway miles on them. They're completely treadless and I have to buy 4 new tires again. These are not cheap tires to replace. I'm livid. If I could give these negative stars, I would.

Bought these tires for the wife's car, she seems happy. Car had from the factory "run flat" tires on it. These are not run flats(thankfully). Car rides much nicer. She is happy. Draw back is now I have to get an extra wheel for a spare, which I would prefer anyway, remember tires do come apart sometimes, run flat or regular tire.

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.