Audi A7 Sportback (2017) is 39 mm (1.54 inch) wider, 3 mm (0.12 inch) higher, 390 kg (860 lbs) lighter and has 45 liters (1.59 ft3) bigger cargo space than Mercedes CL-Class (2020).
Mercedes CL-Class (2020) is 121 mm (4.76 inch) longer than Audi A7 Sportback (2017).