BMW 8 Series (G15) (2019) is 64 mm (2.52 inch) longer and 42 mm (1.65 inch) wider than Citroen C5 (2017).
Citroen C5 (2017) is 117 mm (4.61 inch) higher, 204 kg (450 lbs) lighter and has 19 liters (0.67 ft3) bigger cargo space than BMW 8 Series (G15) (2019).