Switched from Michelin Primacy to the 4s and the ride quality and handling improvement was a nice upgrade. I live in a fairly warm climate with good road surfaces.

Very god tires for the street and quite good on the track. They tended to overheat at track days and not quite as good as the Michelin Cup 2 for track duty. Excellent comfort, noise and wet grip.

2015 Chevy SS. They make this 4000 lb four door feel like a light weight. Hooks off the light, great around a corner... Hands down the best I have ever had in the rain. I couldn't be happier with this tire. You guys did a great job with this one.

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 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.

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...

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.

Had new PZero on the C4 GTS I bought and almost immediately, LOUD AS HELL…. Even though I’ve only driven about 150 miles, feel so much better and… QUIETER..!!!

On my Porsche 2003 c4s I purchased 4 ea Pilot Sport 4s and the car runs & tracks beautiful also eliminated a lot of the Road noise I had from Previous "FALCON" tires

After 85 days, this tire took on a flathead bolt. The picture does not make sense. My local tire repair center patched the tire; however, I am alert for further problems.