BMW 5 Series Touring (2018) is 731 mm (28.78 inch) longer, 85 mm (3.35 inch) wider, 39 mm (1.54 inch) higher and has 211 liters (7.45 ft3) bigger cargo space than Citroen DS4 (2020).
Citroen DS4 (2020) is 463 kg (1,021 lbs) lighter than BMW 5 Series Touring (2018).