Acura RDX (2018) is 234 mm (9.21 inch) higher, 80 kg (176 lbs) lighter and has 219 liters (7.73 ft3) bigger cargo space than Mercedes CLS-Class (2015).
Mercedes CLS-Class (2015) is 256 mm (10.08 inch) longer and 10 mm (0.39 inch) wider than Acura RDX (2018).