Audi RS 5 (2015) is 321 kg (708 lbs) lighter than Mercedes X-Class (2018).
Mercedes X-Class (2018) is 692 mm (27.24 inch) longer, 61 mm (2.40 inch) wider, 450 mm (17.72 inch) higher and has 820 liters (28.96 ft3) bigger cargo space than Audi RS 5 (2015).