These were the original tires that came with my Mercedes GLE53 AMG Coupe. I have about 15000 miles on them but I'm see the following issues in the sidewall of the front tires. Not sure if it's wear issue or something else...

Great tires that are able to transfer >650hp to the pavement well, are very responsive in corners, quiet, and they have an outstanding mileage warranty! I highly recommend these summer tires!!

Had these tires for 20k miles. At about 15k, both front tires had large sections of tread torn off. Good track while they last, but catastrophic failures. Would not let me review tires bought in 2022 - even this this is a part time driven car.

I bought a new Mercedes S class 11/21. Since last Spring i have replaced three of the tires because of chuck holes. They are way too fragile for use in the midwest. I experienced one failure last spring and two others this month.

Replaced the Dunlop run flats that came as OEM and wow what a difference. It's like I bought a new car. Much better handling, faster and more responsive. Acceleration is noticeably better and braking is fantastic.

Good for summer/wet weather, but you should NOT use these in the extreme cold winter months we see in the Midwest. The rubber compound in these tires will harden and, potentially, crack.

Made my Focus RS even a better performer than it already was.. Ready for the next Targa SCCA multi-event. Good for track events, autocrosses, and daily driving. Better than some full race tires I've had in the past.

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.

I replaced the tires with the All Season verison after 75 miles. Tires pick up small stones and the stones leave holes in the tread when removed. The all season version don't pick up stones and are perfect for street driving. These are track tires and shouldn't be sold for street use.

I just put my second set of these awesome tires on my 2014 Maserati Quattroporte GTS.