BMW 8 Series (G14) (2018) is 343 mm (13.50 inch) longer and 43 mm (1.69 inch) wider than Citroen C5 (2020).
Citroen C5 (2020) is 351 mm (13.82 inch) higher, 521 kg (1,149 lbs) lighter and has 89 liters (3.14 ft3) bigger cargo space than BMW 8 Series (G14) (2018).