Citroen DS3 (2017) is 25 mm (0.98 inch) higher and 250 kg (551 lbs) lighter than Mercedes A-Class (2020).
Mercedes A-Class (2020) is 342 mm (13.46 inch) longer, 65 mm (2.56 inch) wider and has 56 liters (1.98 ft3) bigger cargo space than Citroen DS3 (2017).