Cadillac ATS Coupe (2017) is 28 mm (1.10 inch) wider and 20 kg (44 lbs) lighter than Cadillac CT4 (2020).
Cadillac CT4 (2020) is 92 mm (3.62 inch) longer, 30 mm (1.18 inch) higher and has 9 liters (0.32 ft3) bigger cargo space than Cadillac ATS Coupe (2017).
