Mercedes AMG GT (2016) is 1 mm (0.04 inch) wider and 169 kg (373 lbs) lighter than Porsche Panamera (2019).
Porsche Panamera (2019) is 504 mm (19.84 inch) longer, 133 mm (5.24 inch) higher and has 148 liters (5.23 ft3) bigger cargo space than Mercedes AMG GT (2016).