Cadillac ATS (2014) is 51 mm (2.01 inch) longer, 36 mm (1.42 inch) wider, 101 kg (223 lbs) lighter and has 50 liters (1.77 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2014).
Mercedes C-Class (Coupe) (2014) is 10 mm (0.39 inch) higher than Cadillac ATS (2014).