Just threw away the P-Zero's on my 4.2 ALLROAD--worn after 18,000 miles. After much research, have put Conti Extreme Contact 245/45 18's. Gave up a slightly softer ride for MUCH better wet weather traction(and I'm sure snow as well). No appreciable noise increase, as I drive with the windows closed anyway. $167 vs $277 for the Pirelli's made it a no brainer.