I was not told or read anything about this tire for my Corvette Grand Sport being a run flat tire. I found out from the dealer a few days after having the tires installed when I returned to have to lug nuts checked for exact tightness. The tire is very noisy and a hard ride.

Very durable tire with great handling and responsiveness in all weather. I have put these tires on multiple vehicles that I have owned (Toyota Camry, BMW X6, Audi A6, Lexus GS300) over the years and they’ve exceeded the 45K warranty every time. They have excellent traction especially is wet weather conditions greatly minimizing hydroplaning instances.

These are by far the worst “all season” tires I have ever had. In 1 years time I have needed to plug or patch all 4 tires, including plugging 1 tire twice. They grip the road great, but the problem with that is that they grip every nail and other pieces of debris what seems like 100% of the time. I say other debris because one of the plugs I needed to apply was because of a relatively sharp piece of plastic, and another was because of a broken VW emblem that I ran over. All other incidents were because of 2 drywall nails (tiny) and 1 normal screw that I would expect to puncture any tire. My driving habits have not changed and I do not live near any new construction locations. I have never experienced a more sensitive tire, and I am 37 and have driven foreign cars with ridiculous speculation tires for much of my adult life. Stick with the other trusted brands. These are performance tires, and if you are looking for tires to use on a track, then maybe these are the ones for you. If you plan on using them for everyday driving then I caution you to stay away!!!!

These tires are outstanding. From road feel to traction and handling they have exceeded my expectations. For street tires I don't think you can do better. The 40F limit of temp is something to consider if you are driving in the mountains.

Excellent tire. The compound is sticky and aggressive while still offering good traction in cold weather. The tires appear to be well made with a very still XL-rated sidewall. Handling is extremely precise and predictable with perfectly controlled behavior when approaching the limits of cornering grip. The tires are very comfortable and pretty quiet for a performance A/S tire. While I cannot comment on tread life or highway stability just yet, no doubt those will meet expectations as well.

Michelin pilot sport as 4, tires are amazing. Extremely smooth ride, quiet tire. Very happy. Went with 255/40/17 on front 285/35/18 rear since the OE 265/40/17 front and 295/35/18 was not available. Fits perfectly on factory c5 zo6 wheels. 100% satisfied!

Absolutely disappointing product and quality . Bought a car that came with these underperforming overpriced tires that were installed at 12,500 miles on an audi s5 at just 22,500 miles 2 of these tires blew up on me on the road as i was driving 35mph and the other 2 they’re already down to about 5/32 thread life i hear these are warranted until 45k miles but ill be lucky to get 7k miles out of the two that are left honestly will never be purchasing from this brand as they like to mark up their prices based on their brand prestige but they really fall short of what they are giving their customers. I would honestly recommend to people considering buying this tire to go with a cheaper alternative like a yokohama or continental as they arent perfect either but atleast you wont break your wallet by overpaying for a tire that can easily explode and wear out like the michellin ps4 ‘s . Never again will i use Michelin products not even for free i honestly don’t see the justification for the price of this tire especially since lots of customers constantly report that these

Bought these tires for my "New to Me" 2012 Lexus LS460. Ride improved greatly. These tires are also very quiet. While my car isn't a sports car, it does have a top speed of 150+, so I needed a "Z" speed rating. While it doesn't like to be pushed, the grip does feel more stable. Over all highly impressed with these tires.

Tire performs well. Tires are on BMW 330Ci. Have tried a few other brands. Would normally achieve half (20 to 24k) of recommended tread life. These Pilot Sport AS4 tires have provided the longest durability achieving 40k of tread life. Plus, they handle well and provide a great driving experience.

not a durable tire. 2765 miles on developed a sidewall bubble that meant the entire tire needed to be replaced after michellin attempted to bland road hazard instead of manufact defect and during mechanics showed steal not intact and bubble was close to catastrophic bursting that may have lead to loss of control or accident. not readily available to be replaced been waiting 2 weeks. mechanics verified no road savage curb damage or accident or rim or tire cabbage to support anything but manufacturers defect with less than 0.1 mm tread used. look for better tires.