Acura ILX (2015) is 375 kg (827 lbs) lighter than Kia Optima Sportswagon (2017).
Kia Optima Sportswagon (2017) is 305 mm (12.01 inch) longer, 66 mm (2.60 inch) wider, 58 mm (2.28 inch) higher and has 92 liters (3.25 ft3) bigger cargo space than Acura ILX (2015).