BMW 8 Series (G14) (2018) is 42 mm (1.65 inch) wider than Kia Optima (2016).
Kia Optima (2016) is 12 mm (0.47 inch) longer, 126 mm (4.96 inch) higher, 333 kg (734 lbs) lighter and has 160 liters (5.65 ft3) bigger cargo space than BMW 8 Series (G14) (2018).
