Audi A5 (2014) is 26 mm (1.02 inch) longer, 44 mm (1.73 inch) wider and has 124 liters (4.38 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 18 mm (0.71 inch) higher and 240 kg (529 lbs) lighter than Audi A5 (2014).