BMW 3 Series Touring (2017) is 97 mm (3.82 inch) longer, 140 mm (5.51 inch) higher and has 145 liters (5.12 ft3) bigger cargo space than Mercedes AMG GT (2018).
Mercedes AMG GT (2018) is 128 mm (5.04 inch) wider and 109 kg (240 lbs) lighter than BMW 3 Series Touring (2017).