Audi A7 (2016) is 312 mm (12.28 inch) longer, 20 mm (0.79 inch) wider, 195 kg (430 lbs) lighter and has 185 liters (6.53 ft3) bigger cargo space than Mercedes GLC-Class (2017).
Mercedes GLC-Class (2017) is 239 mm (9.41 inch) higher than Audi A7 (2016).