Chevrolet Volt (2020) is 1032 mm (40.63 inch) longer, 168 mm (6.61 inch) wider and has 104 liters (3.67 ft3) bigger cargo space than Citroen C1 (2020).
Citroen C1 (2020) is 30 mm (1.18 inch) higher and 765 kg (1,687 lbs) lighter than Chevrolet Volt (2020).