Kia Optima (2015) is 353 mm (13.90 inch) longer, 50 mm (1.97 inch) wider, 130 kg (287 lbs) lighter and has 176 liters (6.22 ft3) bigger cargo space than Mitsubishi Lancer (2016).
Mitsubishi Lancer (2016) is 16 mm (0.63 inch) higher than Kia Optima (2015).