Kia Rio (Sedan) (2019) is 165 mm (6.50 inch) higher and 162 kg (357 lbs) lighter than Mazda 3 (Sedan) (2017).
Mazda 3 (Sedan) (2017) is 277 mm (10.91 inch) longer, 71 mm (2.80 inch) wider and has 32 liters (1.13 ft3) bigger cargo space than Kia Rio (Sedan) (2019).