Hyundai i40 (2015) is 114 mm (4.49 inch) longer, 19 mm (0.75 inch) wider, 25 mm (0.98 inch) higher and has 86 liters (3.04 ft3) bigger cargo space than Mazda 3 (Sedan) (2019).
Mazda 3 (Sedan) (2019) is 286 kg (631 lbs) lighter than Hyundai i40 (2015).