Chevrolet Spark EV (2015) is 120 mm (4.72 inch) higher and 260 kg (573 lbs) lighter than Kia Optima (2018).
Kia Optima (2018) is 1134 mm (44.65 inch) longer, 234 mm (9.21 inch) wider and has 238 liters (8.40 ft3) bigger cargo space than Chevrolet Spark EV (2015).