BMW 6 Series Gran Turismo (2018) is 590 mm (23.23 inch) longer, 43 mm (1.69 inch) wider and has 170 liters (6.00 ft3) bigger cargo space than Citroen C5 (2020).
Citroen C5 (2020) is 151 mm (5.94 inch) higher and 393 kg (866 lbs) lighter than BMW 6 Series Gran Turismo (2018).