Hyundai i40 (2020) is 285 mm (11.22 inch) longer, 19 mm (0.75 inch) wider, 15 mm (0.59 inch) higher and has 161 liters (5.69 ft3) bigger cargo space than Mazda 3 (Hatchback) (2016).
Mazda 3 (Hatchback) (2016) is 88 kg (194 lbs) lighter than Hyundai i40 (2020).