The Cinturato P7 tires featuring W- and Y-speed ratings are Pirelli's Ultra High Performance Summer tire developed for the drivers of sport coupes and sedans. The Cinturato P7's unique combination of qualities have been made possible by Pirelli's Green Performance approach to developing products offering a synergy of driving pleasure, performance, safety and respect of the environment. The Pirelli Ecoimpact icons on the sidewalls of Cinturato P7 tires highlight their contribution to the environment with regards to energy efficiency, clean air, low noise and long wear. Pirelli's warranty does not cover tires that develop compound cracking due to use in ambient temperatures below 45° Fahrenheit (7° Celsius), so the Cinturato P7 tires, like all summer tires, are not intended to be driven in near-freezing temperatures, through snow or on ice.The Cinturato P7 uses a low rolling resistance tread compound that features technologically advanced polymers to increase grip on wet and dry roads while it reduces vehicle fuel consumption and CO2 emissions. This compound is molded into an asymmetric tread design that promotes even wear, improves ride comfort and reduces noise levels. A robust shoulder and continuous ribs on the outboard portion of the tire enhance lateral grip on dry roads while four circumferential channels provide efficient expulsion of water from the contact patch to enhance hydroplaning resistance and wet traction. The tire's internal structure includes twin steel belts reinforced by nylon cap plies to provide high speed-durability.Note: Cinturato P7 tires are designed and produced using eco-focused manufacturing methods and feature low rolling resistance (LRR) compounds and constructions to enhance the vehicle fuel economy of their Original Equipment applications. These tires are identified as such with Pirelli's Ecoimpact designation on their Sizes and Specs pages. Related Information: Pirelli Cinturato P7 (H- or V-Speed Rated) | Environmentally Conscious Manufacturing