BMW 5 Series Touring (2017) is 450 mm (17.72 inch) longer, 268 mm (10.55 inch) higher and has 210 liters (7.42 ft3) bigger cargo space than Mercedes AMG GT (2015).
Mercedes AMG GT (2015) is 39 mm (1.54 inch) wider and 370 kg (816 lbs) lighter than BMW 5 Series Touring (2017).