Ford C-Max Energi (2015) is 151 mm (5.94 inch) higher than Kia Optima (2017).
Kia Optima (2017) is 446 mm (17.56 inch) longer, 31 mm (1.22 inch) wider, 209 kg (461 lbs) lighter and has 78 liters (2.75 ft3) bigger cargo space than Ford C-Max Energi (2015).