I have had the P6 A/S on a couple of Foci that I owned and the seem to hold up rather well. The grip when new is outstanding but it does go away with time.. they do tend to get noisy when filled with Nitrogen. Keep in mind this was an OEM tire, that means it was selected because it performed adequately for the cheapest price.
No experience with a heavy RWD but I have experience with a lighter FWD. Good tire, expect about 30K depending on driving style. You might think about a tread depth guage from NAPA $5.00 to guide you on when to rotate and overall wear.