Cadillac ATS (2014) is 641 kg (1,413 lbs) lighter than Mercedes S-Class (2017).
Mercedes S-Class (2017) is 602 mm (23.70 inch) longer, 93 mm (3.66 inch) wider, 70 mm (2.76 inch) higher and has 119 liters (4.20 ft3) bigger cargo space than Cadillac ATS (2014).