Cadillac CT6-V (2020) is 332 mm (13.07 inch) longer and 26 mm (1.02 inch) wider than Mercedes E-Class (Estate) (2017).
Mercedes E-Class (Estate) (2017) is 23 mm (0.91 inch) higher, 117 kg (258 lbs) lighter and has 223 liters (7.88 ft3) bigger cargo space than Cadillac CT6-V (2020).