Acura RDX (2015) is 114 mm (4.49 inch) longer, 389 mm (15.31 inch) higher and has 389 liters (13.74 ft3) bigger cargo space than Mercedes AMG GT (2014).
Mercedes AMG GT (2014) is 67 mm (2.64 inch) wider and 41 kg (90 lbs) lighter than Acura RDX (2015).