Cadillac CT6 (2016) is 890 mm (35.04 inch) longer, 100 mm (3.94 inch) wider, 38 mm (1.50 inch) higher and has 92 liters (3.25 ft3) bigger cargo space than Mercedes A-Class (2020).
Mercedes A-Class (2020) is 259 kg (571 lbs) lighter than Cadillac CT6 (2016).