Kia Optima (2019) is 1126 kg (2,482 lbs) lighter than Lincoln Navigator (2015).
Lincoln Navigator (2015) is 479 mm (18.86 inch) longer, 169 mm (6.65 inch) wider, 468 mm (18.43 inch) higher and has 1290 liters (45.56 ft3) bigger cargo space than Kia Optima (2019).