Cadillac CTS-V (2019) is 473 mm (18.62 inch) longer, 164 mm (6.46 inch) higher and has 38 liters (1.34 ft3) bigger cargo space than Mercedes AMG GT (2016).
Mercedes AMG GT (2016) is 105 mm (4.13 inch) wider and 235 kg (518 lbs) lighter than Cadillac CTS-V (2019).