Audi A3 (Sedan) (2016) is 792 mm (31.18 inch) longer, 137 mm (5.39 inch) wider and has 259 liters (9.15 ft3) bigger cargo space than Citroen C2 (2017).
Citroen C2 (2017) is 45 mm (1.77 inch) higher and 304 kg (670 lbs) lighter than Audi A3 (Sedan) (2016).
