Acura RLX (2014) is 51 mm (2.01 inch) higher, 166 kg (366 lbs) lighter and has 22 liters (0.78 ft3) bigger cargo space than Mercedes S-Class Coupe (2017).
Mercedes S-Class Coupe (2017) is 44 mm (1.73 inch) longer and 7 mm (0.28 inch) wider than Acura RLX (2014).