BMW 5 Series Gran Turismo (2018) is 188 mm (7.40 inch) longer, 53 mm (2.09 inch) wider, 46 mm (1.81 inch) higher and has 227 liters (8.02 ft3) bigger cargo space than Cadillac CT4 (2021).
Cadillac CT4 (2021) is 147 kg (324 lbs) lighter than BMW 5 Series Gran Turismo (2018).