Hyundai Kona (2020) is 4 mm (0.16 inch) wider and 115 mm (4.53 inch) higher than Mazda 3 (Sedan) (2014).
Mazda 3 (Sedan) (2014) is 399 mm (15.71 inch) longer, 310 kg (683 lbs) lighter and has 87 liters (3.07 ft3) bigger cargo space than Hyundai Kona (2020).