I must have driven less than 5000 km on these tires on my Audi Q7 Technik there are side bulges on 2 tires. These 2 tires have the same DOT. The 2 tires that are alright have a different DOT compared to the defective ones. I am a very careful driver. I do have additional winter tires on rims hence the mileage has been low on these tires. disappointed that an expensive tire is not made to last.

I bought a used car with pretty new 4S tires on them. I've not had to replace two front tires due to sidewall bubbles/tears from potholes. I know when they occurred and this level of damage should not have happened to these tires. By looking at the reviews, I can see I'm not the only one saying this. At this point just say they are track day only tires.

Bought two sets of Pilot Sport 4S’s and on my wife’s 335is the rears came apart with the tread separating from the sidewall on the inside of both rear tires. Alignment is perfect, proper tire pressures maintained at all times and my wife drives the car properly and carefully. I don’t understand why this lapse in quality occurred.

Thankfully these came on my new 911 that I ordered (you can't specify tire brand) - much preferred over the Pirellis Zeros that typically come on new Porsches. On my previous Boxster, I switched from Pirelli to Michelin Pilots and was pleased. Note: I don't track my cars.

The grip provided by these tires is astonishing compared to the other brand OEM tires they replaced. Wet and dry traction are superb. I'm also impressed by the ride quality and low noise level. My only regret is that they don't come in 16" as I also need tires for my BMW. I may have to upgrade that car to 17" wheels so I can equip it with 4 S's. Remarkable tires!

There is no need to compromise on a summer tire anymore. The PS4S tire is no doubt the industry standard. Changed the complete feel of my car when i put these on. After 8000 miles, very little tread has worn. These tires also keep noise levels to a minimum, and provide the same comfort (in some cases more) of all season performance tires.

I own a 2019 BULLITT Mustang with a Stage 2 Whipple Supercharger and 825 HP. I spent a great deal of time researching and asking automotive people in the know what tire I should have on my car for when I went on the race track at AREA 27 in Oliver, BC. Time and again I was told that there was a reason why Ford put Michelin Pilot Sport 4S tires on you high performance Bullitt. Well everyone was absolutely correct. I pushed my BULLITT to the limit the entire day and the Pilot Sport 4s Michelins gave me everything I could ask for, grip, traction in the corners, predictability, feel and ride. A WIN, WIN for me and my BULLITT!!!

Changed out from the stock run-flats, which wore out so quickly and developed a drone overtime, to the Pilot Sport 4S. Cannot imagine going back at this point. Smooth, quiet, yet far more sticky which helps boost the confidence of the vehicle! Will definitely buy more in the future.

Overall very good tires in temrs of handling The previous version of the Pilot 4S was a much better tire (it was not noisy on the freeway), but it is discontinued or I would have bought it. The Pilot Sport 4S is very noisy at freeway speeds, and annoying. Would not purchase again.

I switched to the PS4S from an OEM run-flat, high performance summer tire of a different brand. We went on a 1,400 kilometre trip soon afterward that included western mountain roads, where the Michelins were outstanding. They took our sports car to a new level! Bonus: they ride much better, transmit less road noise, and do not ‘tramline’ (lurch into pavement grooves and sags). They were well worth the price.