Cadillac ATS-V (2018) is 18 mm (0.71 inch) longer and 467 kg (1,030 lbs) lighter than Mercedes GLC-Class (2020).
Mercedes GLC-Class (2020) is 79 mm (3.11 inch) wider, 244 mm (9.61 inch) higher and has 56 liters (1.98 ft3) bigger cargo space than Cadillac ATS-V (2018).