The P Zero System is Pirelli's Max Performance Summer tire system offering the possibility of selecting from two different tire designs tuned to be used separately or in unison depending on the type of car, driving conditions and driving style. Designed to heighten performance in the dry and especially in the wet, P Zero System tires were originally developed for some of the world's fastest cars, such as Lamborghini, Ferrari, and Porsche. Pirelli's warranty does not cover tires that develop compound cracking due to use in ambient temperatures below 45° Fahrenheit (7° Celsius), so the P Zero System tires, like all summer tires, is not intended to be driven in near-freezing temperatures, through snow or on ice.