BMW X6 (2018) is 789 mm (31.06 inch) longer, 172 mm (6.77 inch) wider, 399 mm (15.71 inch) higher and has 245 liters (8.65 ft3) bigger cargo space than Mercedes SLK-Class (2017).
Mercedes SLK-Class (2017) is 625 kg (1,378 lbs) lighter than BMW X6 (2018).