Kia Optima (2019) is 601 mm (23.66 inch) longer, 62 mm (2.44 inch) wider, 17 mm (0.67 inch) higher and has 116 liters (4.10 ft3) bigger cargo space than Volkswagen CrossGolf (2017).
Volkswagen CrossGolf (2017) is 216 kg (476 lbs) lighter than Kia Optima (2019).