BMW 5 Series Touring (2017) is 241 mm (9.49 inch) longer, 86 mm (3.39 inch) wider, 135 mm (5.31 inch) higher and has 257 liters (9.08 ft3) bigger cargo space than Cadillac CT4 (2021).
Cadillac CT4 (2021) is 463 kg (1,021 lbs) lighter than BMW 5 Series Touring (2017).