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.

I expected excellent grip but was surprised by how quiet the 4S is. As a point of reference, previous tires include PS3, DWS06, ContiSportContact 3

Excellent traction, handles great and stopping distance is excellent . Very happy with the looks and the performances of these tires.

These tires give very good road holding performance. the only down side is the very noticeable road noise transmitted into the car interior.

N rating may have reduced the road noise a bit, but not enough to justify extra cash for tires. We will see in the long run.

Previous run flats felt dull and heavy. Went with the only tires that I would have on my Porsches. These are the only way to fly!

Definitely noticed more grip on these tires in hot weather. Did not get a chance to autocross yet, so can't speak to that.