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 just replaced Continental run-flat tires with the Pilot Sport All Season 4 (non run-flats). It is made a massive difference. The tires ride smoothly, steer precisely, braking is improved, and wet performance is so much better and confidence inspiring. A great combination of both sport and luxury. As to a number of comments about the tires being noisy, they really aren't any noisier than competitive tires or the tires predecessor, the A's 3+. I think it's just that the tone of the noises a little bit higher pitched and therefore more noticeable to some people. On the other hand, I noticed that there is no noise difference when driving on asphalt and concrete, which is unusual because most tires tend to be louder on concrete. Not so with these tires.

Came on new 24 Porsche Panamera 4. Total of 4,600 miles to date. Great handling and good in the rain. Works well on light snow too. Tires are different size front and rear so cannot rotate. Time will tell how long these will last. I would be happy to get 30k miles.

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.

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'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!

Terrible quality control. Michelin supplied 2 additional replacement sets and all 3 sets produced a vibration. Tires seen bouncing on the balancer and unacceptably high road force. 26lbs is WAY too much tolerance!!! 10 lbs is felt on low profile tires. No longer a market leader in quality.

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 brought my 2007 Mercedes Benz CLK 350 in for service inspection as the "brake pad wear" light came on recently. During the inspection, I was informed that the rear tires on the vehicle needed to be replaced. All four of the tires on the vehicle are Michelin Pilot Sport AS 4 B 225/45ZR17 94Y XL Michelin Pilot Sport AS 4 B 245/40ZR17 95Y XL Michelin Pilot Sport AS 4 B I was shocked by the news that these Michelin tires needed to be replaced, given that the vehicle is driven less than 4,000 miles a year, and the vehicle is almost never driven on the freeway, and is rarely driven above 35 mph on surface streets. I have now confirmed that these Michelin tires were installed by Big O Tires on December 7, 2020, at which time the mileage on the vehicle was 90,415. The December 7, 2020 invoice from Big O Tires states that these tires come with a warranty ("Minimum Mileage Warranty: MFG45"). This past week, on Monday, May 12, 2025, the odometer mileage was recorded as 105,606. Assuming these odometer readings are accurate (which they appear to be), this means the vehicle has been driven a total of only 15,191 miles in the 53 months since these Michelin tires were both recommended and installed on the vehicle in December, 2020. This is under 3,500 miles per year. I have never heard of tires lasting only 15,000 miles, and I certainly did not expect this of a supposed "quality tire" bearing the Michelin brand. Honestly, I thought that I was buying the best possible tires for this vehicle - and, in any event, these were the tires that were recommended by Big O Tires. During my second trip to Big O Tires on Monday, May 12, 2025, I asked about whether these tires came with a warranty, or whether the dealership (Big O Tires) or the manufacturer (Michelin) would stand behind the tires and admit the obvious - that these tires are not supposed to wear out within 15,000 miles of ordinary driving. In my discussions with Big O Tires on Monday, May 12, 2025, I was given the clear impression that there was nothing that could be done for me at the dealership (Big O Tires), and that I was free to take the matter up with the manufacturer (Michelin). This seems strange to me, since these tires were recommended and installed under a warranty by the dealership (Big O Tires), and it is the dealership that promotes the Michelin tire brand. I have now done some basic research on the internet, and it seems that many other customers have complained about these tires wearing out prematurely. The loudest complaints seem to be from customers who likewise cannot believe that Michelin tires would last as little as 15,000 miles. Conclusion The more I consider what has transpired, it is unlikely that I would rely on Big O Tires or the Michelin brand in the future, or recommend them to others.

I bought these tires for my Honda Civic Si to replace the god awful OEM Goodyears and I was not disappointed. These tires turned my car into a monster. Now I can have a lot of fun driving without losing traction, regardless of if it is raining or not. Rain performance is incredible as it felt like driving in the dry with these tires. The slight increase in noise is well worth the performance.