Carbike360 comprehensive BMW M340i xDrive and Audi S5 Sportback 3.0 TFSI Quattro comparison based on the price, specification, fuel efficiency, features and more. BMW M340i xDrive comes with a price of ₹74.90 Lakh and Audi S5 Sportback 3.0 TFSI Quattro is priced at ₹77.77 Lakh. BMW M340i xDrive equipped with 2998 cc, 6 Cylinders Inline, 4 Valves/Cylinder, DOHC engine whereas Audi S5 Sportback 3.0 TFSI Quattro has2994 cc, 6 Cylinders In V Shape, 4 Valves/Cylinder, DOHC