I bought these tires to replace old Nexen tires fitted by the previous owner of my car. All of a sudden, the car changed. The tires were actually able to transfer the torque (400nm) to the ground without any spin like the old ones. Wet or dry, it gives a much quicker acceleration and confidence. I was totally unable to find the limits of these tires as of today but being a FWD car that is not sporty by any means, this is no surprise. I have Koni Special Active fitted, as well as upgraded rear sway bar, bushings, endlinks and that kind of stuff and I can guarantee that the PZ4 is the right tire to have for a dynamic driving. No loss of traction, no DSTC warning. Same for the braking as I have upgraded disks and pads, stopping distance is unbelievable.
The main reason why I bought them in the first place is their quietness (69db) and low rolling resistance for low consumption but the overall performances are exceptional. I am truely satisfied with this purchase and it was a pain to change for winter tires when the time came !