A new, supreme top-of-the-range model is taking over the leading position within the Porsche Cayenne range; second only to the Carrera GT, the Cayenne Turbo S is the most powerful Porsche homologated for road use. Benefiting from careful improvement and on-going development of the turbocharger system, the eight-cylinder bi-turbo power unit develops maximum output of 520 bhp at 5,500 rpm, 70 bhp more than the Cayenne Turbo.