BMW 7 Series (2015) is 1148 mm (45.20 inch) longer, 187 mm (7.36 inch) wider, 20 mm (0.79 inch) higher and has 230 liters (8.12 ft3) bigger cargo space than Citroen DS3 (2020).
Citroen DS3 (2020) is 655 kg (1,444 lbs) lighter than BMW 7 Series (2015).
