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.

The experience of my first two installed Michelin Pilot AS 4's on my vehicle prompted the second purchase of the other two to complete the set. I replaced my tires with these on my vehicle because of the Michelin tradition for tires along with the performance and quietness they bring.

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 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.

I have purchased hundreds of sets of tires over the years... from winter tires to work tires for our vans to race track slicks... nothing beats Michellin... hands down. Michellin tires are always the smoothest ride, best traction and longest lasting tires... and I've tried most other brands. I would only buy Michellin's no matter what vehicle I have. The BEST!

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.

I am 66 years old and have been buying Michelin tires since i was in my 30 s excellent tires even better now that they last longer .You can find cheaper tires,but i do a lot of high performance driving in dry and wet very good sence of security excellent road feel,I believe them to be the best and honestly believe you get what you pay for.

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.

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

These are excellent "all-around" tires that provide reasonable traction in rain/snow/ice, allowing me to go through up to 6 inches of snow this winter without difficulty. This is surprising, given that my Cadillac CTS4 Performance Coupe is quite low, and has staggered tire sizes. The rear "steamrollers" should NOT do well in the snow, but yours do. On dry pavement, the ride is as smooth as can be expected in a low-profile tire, and handling is quite good. It is not as good as a dedicated, high-performance summer tire but, again, it is a great compromise.