The Pirelli P Zero (PZ4) tires are high-performance summer tires that have been developed using Pirelli's expertise from Formula 1 racing. These tires are designed for exclusive and high-performing vehicles. They were initially introduced as Original Equipment for certain Audi, Lamborghini, and Porsche models, but they are also available as replacement tires. It's important to note that Pirelli's warranty does not cover tires that develop cracking in cold temperatures, so these tires should not be used or stored in near-freezing temperatures, icy or snowy conditions. The P Zero (PZ4) tires are customized for each specific vehicle application. They are made using a special silica and carbon black tread compound that can be adjusted based on the needs of the vehicle manufacturer. This allows the tires to provide the desired combination of wet and dry grip, handling, comfort, tread life, and fuel economy. The tread design of the P Zero (PZ4) tires is asymmetrical and differs based on whether the tire is intended for sports cars or luxury vehicles. The outer shoulder of the tire for sports cars focuses on dry handling, grip, and lateral stability. On the other hand, the outer shoulder of the tire for luxury vehicles is tuned for improved comfort, noise reduction, and resistance to hydroplaning. The internal structure of the P Zero (PZ4) tires features twin steel belts reinforced by a hybrid nylon and Kevlar Zero Degree cap ply. The tire casing can be customized with different materials and constructions to further enhance the tire's performance characteristics for specific original equipment applications. Certain sizes of the P Zero (PZ4) tires are available with Pirelli's Seal Inside technology, which uses an adhesive sealant to seal punctured areas and prevent air loss. Additionally, some sizes of these tires come with the Pirelli Noise Cancelling System (PNCS), which includes a layer of sound-absorbing foam to reduce cabin noise in the vehicle. In summary, the Pirelli P Zero (PZ4) tires are high-performance summer tires developed using Pirelli's Formula 1 expertise. They are tailored to specific vehicle applications and offer a combination of grip, handling, comfort, tread life, and fuel economy. However, they should not be used in cold temperatures or on icy/snowy surfaces. The tires have different tread designs for sports cars and luxury vehicles, and their internal structure is customized to match the needs of each application. Some sizes are available with additional features such as Pirelli's Seal Inside technology and the Noise Cancelling System (PNCS) for reduced cabin noise.