BMW 5 Series Gran Turismo (2015) is 731 mm (28.78 inch) longer, 90 mm (3.54 inch) wider, 33 mm (1.30 inch) higher and has 141 liters (4.98 ft3) bigger cargo space than Citroen DS4 (2017).
Citroen DS4 (2017) is 692 kg (1,526 lbs) lighter than BMW 5 Series Gran Turismo (2015).