Carbike360 comprehensive Audi RS Q8 Performance 4.0L TFSI and Porsche Cayenne Base comparison based on the price, specification, fuel efficiency, features and more. Audi RS Q8 Performance 4.0L TFSI comes with a price of ₹2.49 Cr and Porsche Cayenne Base is priced at ₹1.42 Cr. Audi RS Q8 Performance 4.0L TFSI equipped with 3996 cc, 8 Cylinders In V Shape, 4 Valves/Cylinder, DOHC engine whereas Porsche Cayenne Base has2995 cc, 6 Cylinders In V Shape, 4 Valves/Cylinder, DOHC