Cadillac CT6 (2017) is 892 mm (35.12 inch) longer, 100 mm (3.94 inch) wider, 40 mm (1.57 inch) higher and has 92 liters (3.25 ft3) bigger cargo space than Mercedes A-Class (2016).
Mercedes A-Class (2016) is 259 kg (571 lbs) lighter than Cadillac CT6 (2017).