BMW X4 (2016) is 71 mm (2.80 inch) wider, 167 mm (6.57 inch) higher and has 10 liters (0.35 ft3) bigger cargo space than Mercedes C-Class (Estate) (2017).
Mercedes C-Class (Estate) (2017) is 31 mm (1.22 inch) longer and 215 kg (474 lbs) lighter than BMW X4 (2016).