Kia Optima (2015) is 184 mm (7.24 inch) longer and 425 kg (937 lbs) lighter than Toyota FJ Cruiser (2016).
Toyota FJ Cruiser (2016) is 45 mm (1.77 inch) wider, 364 mm (14.33 inch) higher and has 280 liters (9.89 ft3) bigger cargo space than Kia Optima (2015).