BMW 5 Series (2014) is 453 mm (17.83 inch) longer, 271 mm (10.67 inch) higher and has 89 liters (3.14 ft3) bigger cargo space than Mercedes AMG GT (2017).
Mercedes AMG GT (2017) is 39 mm (1.54 inch) wider and 155 kg (342 lbs) lighter than BMW 5 Series (2014).