BMW 8 Series (G14) (2018) is 64 mm (2.52 inch) longer and 50 mm (1.97 inch) wider than Citroen C5 (2014).
Citroen C5 (2014) is 116 mm (4.57 inch) higher, 253 kg (558 lbs) lighter and has 89 liters (3.14 ft3) bigger cargo space than BMW 8 Series (G14) (2018).