Chevrolet Volt (2017) is 114 mm (4.49 inch) longer and 63 mm (2.48 inch) wider than Kia Rio (Sedan) (2018).
Kia Rio (Sedan) (2018) is 172 mm (6.77 inch) higher, 490 kg (1,080 lbs) lighter and has 87 liters (3.07 ft3) bigger cargo space than Chevrolet Volt (2017).