BMW 3 Series Gran Turismo (2019) is 495 mm (19.49 inch) longer, 39 mm (1.54 inch) wider, 19 mm (0.75 inch) higher and has 112 liters (3.96 ft3) bigger cargo space than Citroen C4 (2014).
Citroen C4 (2014) is 455 kg (1,003 lbs) lighter than BMW 3 Series Gran Turismo (2019).