Audi A3 Sportback (2017) is 290 kg (639 lbs) lighter than Kia Optima (2015).
Kia Optima (2015) is 542 mm (21.34 inch) longer, 75 mm (2.95 inch) wider, 39 mm (1.54 inch) higher and has 130 liters (4.59 ft3) bigger cargo space than Audi A3 Sportback (2017).
