The Pirelli P4 Four Seasons tire is a Standard Touring All-Season tire developed for the drivers of coupes, sedans, minivans, crossover vehicles and small SUVs. The P4 Four Seasons is designed to perform in all four seasons by blending ride comfort, low noise and high mileage with traction on wet roads and in light snow. The Pirelli P4 Four Seasons tire features a silica-rich tread compound to reduce rolling resistance and enhance foul-weather traction. The tread compound is molded into a symmetric pattern that features a continuous center rib and independent tread blocks (185mm section width sizes feature a single circumferential center groove and no center rib) that employ computer-designed siping to combine handling on dry roads with traction on wet roads and in light snow. Two central circumferential grooves and numerous angled grooves help water escape from between the tire and the road to reduce the risk of hydroplaning. The Pirelli P4 Four Seasons tires feature a computer-aided design (CAD) optimized tread profile with an internal structure that includes twin steel belts reinforced by spirally wrapped nylon to combine good wear with ride quality and durability. Polyester cord body plies combine strength with ride comfort.