Audi A5 (2018) is 17 mm (0.67 inch) longer, 600 kg (1,323 lbs) lighter and has 104 liters (3.67 ft3) bigger cargo space than Mercedes GLC-Class (2015).
Mercedes GLC-Class (2015) is 44 mm (1.73 inch) wider and 288 mm (11.34 inch) higher than Audi A5 (2018).