BMW 8 Series (G15) (2019) is 313 mm (12.32 inch) longer and 31 mm (1.22 inch) wider than Citroen DS5 (2014).
Citroen DS5 (2014) is 172 mm (6.77 inch) higher, 254 kg (560 lbs) lighter and has 45 liters (1.59 ft3) bigger cargo space than BMW 8 Series (G15) (2019).