INFINITI Q50 (2014) is 391 mm (15.39 inch) longer, 48 mm (1.89 inch) wider and has 18 liters (0.64 ft3) bigger cargo space than Mazda 3 (Hatchback) (2016).
Mazda 3 (Hatchback) (2016) is 12 mm (0.47 inch) higher and 451 kg (994 lbs) lighter than INFINITI Q50 (2014).