Audi S7 (2019) is 556 mm (21.89 inch) longer, 104 mm (4.09 inch) wider and has 114 liters (4.03 ft3) bigger cargo space than Mercedes GLA-Class (2016).
Mercedes GLA-Class (2016) is 72 mm (2.83 inch) higher and 645 kg (1,422 lbs) lighter than Audi S7 (2019).