BMW 8 Series (G14) (2020) is 1368 mm (53.86 inch) longer, 282 mm (11.10 inch) wider and has 154 liters (5.44 ft3) bigger cargo space than Citroen C1 (2014).
Citroen C1 (2014) is 129 mm (5.08 inch) higher and 977 kg (2,154 lbs) lighter than BMW 8 Series (G14) (2020).