Citroen C5 (2017) is 487 mm (19.17 inch) longer, 80 mm (3.15 inch) wider, 25 mm (0.98 inch) higher and has 98 liters (3.46 ft3) bigger cargo space than Mercedes A-Class (2015).
Mercedes A-Class (2015) is 225 kg (496 lbs) lighter than Citroen C5 (2017).