BMW 4 Series (2016) is 565 kg (1,246 lbs) lighter than Mercedes M-Class (2014).
Mercedes M-Class (2014) is 106 mm (4.17 inch) longer, 56 mm (2.20 inch) wider, 405 mm (15.94 inch) higher and has 245 liters (8.65 ft3) bigger cargo space than BMW 4 Series (2016).