Audi Q7 (2018) is 173 mm (6.81 inch) longer, 115 mm (4.53 inch) wider, 297 mm (11.69 inch) higher and has 470 liters (16.60 ft3) bigger cargo space than Mercedes E-Class (2014).
Mercedes E-Class (2014) is 180 kg (397 lbs) lighter than Audi Q7 (2018).