Ford C-Max Energi (2015) is 156 mm (6.14 inch) higher than Kia Optima (2016).
Kia Optima (2016) is 446 mm (17.56 inch) longer, 31 mm (1.22 inch) wider, 179 kg (395 lbs) lighter and has 78 liters (2.75 ft3) bigger cargo space than Ford C-Max Energi (2015).