Alfa Romeo 4C (2017) is 62 mm (2.44 inch) wider and 630 kg (1,389 lbs) lighter than Kia Niro EV (2018).
Kia Niro EV (2018) is 387 mm (15.24 inch) longer, 376 mm (14.80 inch) higher and has 414 liters (14.62 ft3) bigger cargo space than Alfa Romeo 4C (2017).