Citroen C4 Cactus (2014) is 15 mm (0.59 inch) higher and 570 kg (1,257 lbs) lighter than Kia Optima (2015).
Kia Optima (2015) is 698 mm (27.48 inch) longer, 131 mm (5.16 inch) wider and has 152 liters (5.37 ft3) bigger cargo space than Citroen C4 Cactus (2014).
