Audi Q7 (2016) is 659 mm (25.94 inch) longer, 183 mm (7.20 inch) wider, 183 mm (7.20 inch) higher and has 524 liters (18.50 ft3) bigger cargo space than Mercedes B-Class (2014).
Mercedes B-Class (2014) is 665 kg (1,466 lbs) lighter than Audi Q7 (2016).