Audi A3 Sportback (2017) is 21 mm (0.83 inch) longer, 5 mm (0.20 inch) wider, 140 kg (309 lbs) lighter and has 39 liters (1.38 ft3) bigger cargo space than Mercedes A-Class (2016).
Mercedes A-Class (2016) is 7 mm (0.28 inch) higher than Audi A3 Sportback (2017).
