Kia Rio (Sedan) (2018) is 250 mm (9.84 inch) longer, 307 mm (12.09 inch) higher, 224 kg (494 lbs) lighter and has 52 liters (1.84 ft3) bigger cargo space than Mercedes SLK-Class (2017).
Mercedes SLK-Class (2017) is 92 mm (3.62 inch) wider than Kia Rio (Sedan) (2018).