I bought my 4 tires a month ago and I was surprised with the quality! The roads even feel very padded!

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!

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

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

Bought Michelin PS4s for Camaro ZL1 , and love them ! They perform well , quiet , quick steer , awesome awesome grip !

Usual fine grip in dry conditions (no wet testing due to lack of rain) with improved ride quality and reduced noise level.

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

I thought the Michelin pilot super sports were the best tire money could buy. Until the new 4S came out! Highly recommend!

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.

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