Audi A3 Sportback (2017) is 140 kg (309 lbs) lighter than Mercedes B-Class (2017).
Mercedes B-Class (2017) is 80 mm (3.15 inch) longer, 1 mm (0.04 inch) wider, 131 mm (5.16 inch) higher and has 106 liters (3.74 ft3) bigger cargo space than Audi A3 Sportback (2017).
