Carbike360 comprehensive Mercedes-Benz AMG G-Class G 63 and BMW X7 xDrive40i M Sport comparison based on the price, specification, fuel efficiency, features and more. Mercedes-Benz AMG G-Class G 63 comes with a price of ₹3.75 Cr and BMW X7 xDrive40i M Sport is priced at ₹1.31 Cr. Mercedes-Benz AMG G-Class G 63 equipped with 3982 cc, 8 Cylinders In V Shape, DOHC engine whereas BMW X7 xDrive40i M Sport has2998 cc, 6 Cylinders Inline, 4 Valves/Cylinder, DOHC.