BMW 5 Series Touring (2016) is 667 mm (26.26 inch) longer, 111 mm (4.37 inch) wider, 68 mm (2.68 inch) higher and has 152 liters (5.37 ft3) bigger cargo space than Citroen C4 (2017).
Citroen C4 (2017) is 735 kg (1,620 lbs) lighter than BMW 5 Series Touring (2016).