The Pilot Sport 4S is Michelin's Max Performance developed in cooperation with some of the most demanding vehicle manufacturers, including Audi, BMW, Mercedes-Benz and Porsche to utilize key technologies engineered during competition in the 24 Hours of Le Mans. It was designed for serious drivers looking to maximize the performance potential of their sports cars, performance sedans and powerful luxury vehicles. The Pilot Sport 4S excels in warm dry and wet conditions, so like all Max Performance s, is not intended to be serviced, stored nor driven in near- and below-freezing temperatures, through snow or on ice