BMW 5 Series Gran Turismo (2017) is 729 mm (28.70 inch) longer, 91 mm (3.58 inch) wider, 33 mm (1.30 inch) higher and has 141 liters (4.98 ft3) bigger cargo space than Citroen DS4 (2020).
Citroen DS4 (2020) is 477 kg (1,052 lbs) lighter than BMW 5 Series Gran Turismo (2017).