Benefits This historic tyre was equipped on new model Porsche cars Development began on the YOKOHAMA A008 (ADVAN HF Type-D) when it was recognised by the Porsche Owners Club Original equipment on at least 10 different sports car models at the time including the 911 High Speed and high-speed handling stability Enhanced grip Feature Jointless nylon full cover Steel belt and steel reinforcement Dual layer tread compound Asymmetric pattern design