Very interesting read, I see there are test results from different labs as well. Although there are slight discrepancies, the general result seem to favour PS4 or PS4S. I also see the results differ if the tyre size change as well.

Thanks for the info.

Anyone have any experience using continental and how many years did you need to changed your tires? Cz im using tires from kumho. Always problem. I think i need to find a new tires for my car. Pls. Urgent. This saturday i need to changed my tires. But pls suggest a cheaper one. Huhu.