Cadillac ATS (2015) is 11 mm (0.43 inch) higher, 45 kg (99 lbs) lighter and has 25 liters (0.88 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2020).
Mercedes C-Class (Coupe) (2020) is 43 mm (1.69 inch) longer and 4 mm (0.16 inch) wider than Cadillac ATS (2015).