Pirelli P Zero Run Flat (PZ4) tires are high-performance summer tires that were developed using Pirelli's Formula 1 expertise. They are designed for use on sports cars, sport coupes, and high-performance luxury sedans. These tires are used as Original Equipment on certain BMW, Mercedes-Benz, and MINI models, and are also available as replacements. The Pirelli P Zero Run Flat tires offer the convenience of temporary extended mobility in case of a complete loss of air pressure. However, it is important to note that their warranty does not cover tires that develop compound cracking when used in temperatures below 45° Fahrenheit (7° Celsius). Like all summer tires, they are not suitable for driving in near-freezing temperatures, snow, or on ice. These tires feature an asymmetric tread design made from a summer-only rubber compound with a high silica content. The design focuses on providing comfort, low rolling resistance, low noise, and resistance to hydroplaning. The tire's internal structure includes twin steel belts reinforced by a hybrid nylon and Kevlar ZeroDegree cap ply. Depending on the desired performance characteristics, the tire casing can be made from two-ply polyester or one- or two-ply rayon, with either symmetric or asymmetric construction. The sidewalls of the Pirelli P Zero Run Flat tires have additional reinforcement to enable self-supporting run-flat capabilities at speeds of up to 50 mph for a distance of up to 50 miles (80 km/h for 80 km). To ensure the safe use of these tires, it is important to have a tire pressure monitoring system (TPMS) installed in the vehicle to detect and signal changes in tire pressure. Please note that tires branded with MOExtended or MOE on their sidewalls offer limited temporary extended mobility in case of a puncture resulting in complete air pressure loss. However, they do not have the same endurance as conventional run-flat tires, so they should not be used as substitutes when a conventional run-flat tire is required. To determine the appropriate tire for your vehicle, consult the Original Equipment tire listing for your specific make and model, or refer to your vehicle owner's manual.