Cadillac CT6 (2017) is 598 mm (23.54 inch) longer, 155 mm (6.10 inch) higher, 10 kg (22 lbs) lighter and has 141 liters (4.98 ft3) bigger cargo space than Ferrari Portofino (2020).
Ferrari Portofino (2020) is 58 mm (2.28 inch) wider than Cadillac CT6 (2017).
