BMW 3 Series Gran Turismo (2021) is 1360 mm (53.54 inch) longer, 209 mm (8.23 inch) wider, 41 mm (1.61 inch) higher and has 325 liters (11.48 ft3) bigger cargo space than Citroen C1 (2014).
Citroen C1 (2014) is 624 kg (1,376 lbs) lighter than BMW 3 Series Gran Turismo (2021).