BMW 5 Series (2020) is 139 mm (5.47 inch) longer and 466 kg (1,027 lbs) lighter than Mercedes M-Class (2015).
Mercedes M-Class (2015) is 59 mm (2.32 inch) wider, 310 mm (12.20 inch) higher and has 160 liters (5.65 ft3) bigger cargo space than BMW 5 Series (2020).