Mercedes M-Class (2015) is 13 mm (0.51 inch) higher, 200 kg (441 lbs) lighter and has 380 liters (13.42 ft3) bigger cargo space than Volvo XC90 (2014).
Volvo XC90 (2014) is 146 mm (5.75 inch) longer and 32 mm (1.26 inch) wider than Mercedes M-Class (2015).