BMW X6 (2017) is 775 mm (30.51 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 (2014).
Mercedes SLK-Class (2014) is 645 kg (1,422 lbs) lighter than BMW X6 (2017).