Hyundai i40 (2015) is 315 mm (12.40 inch) longer, 19 mm (0.75 inch) wider, 15 mm (0.59 inch) higher and has 141 liters (4.98 ft3) bigger cargo space than Mazda 3 (Hatchback) (2016).
Mazda 3 (Hatchback) (2016) is 388 kg (855 lbs) lighter than Hyundai i40 (2015).