BMW 5 Series Gran Turismo (2017) is 249 mm (9.80 inch) longer, 87 mm (3.43 inch) wider, 137 mm (5.39 inch) higher and has 197 liters (6.96 ft3) bigger cargo space than Cadillac CT4 (2020).
Cadillac CT4 (2020) is 345 kg (761 lbs) lighter than BMW 5 Series Gran Turismo (2017).