What design elements contribute to the Cayenne Coupe's aerodynamic efficiency?

The Cayenne Coupe's aerodynamic efficiency is achieved through a combination of design elements. The Coupe's sloping roofline and redesigned rear spoiler help reduce drag and turbulence, while the active rear spoiler enhances stability at higher speeds. The Coupe also has air curtains at the front, which channel air around the front wheels to reduce drag and improve aerodynamics.