BMW 7 Series (2018) is 656 mm (25.83 inch) longer, 154 mm (6.06 inch) wider, 32 mm (1.26 inch) higher and has 8 liters (0.28 ft3) bigger cargo space than Citroen C-Elysee (2017).
Citroen C-Elysee (2017) is 765 kg (1,687 lbs) lighter than BMW 7 Series (2018).