BMW 3 Series Gran Turismo (2018) is 38 mm (1.50 inch) higher than Kia Optima Sportswagon (2015).
Kia Optima Sportswagon (2015) is 31 mm (1.22 inch) longer, 32 mm (1.26 inch) wider, 185 kg (408 lbs) lighter and has 33 liters (1.17 ft3) bigger cargo space than BMW 3 Series Gran Turismo (2018).