Mazda 3 (Sedan) (2017) is 46 mm (1.81 inch) longer and 36 mm (1.42 inch) wider than Nissan Sylphy (2017).
Nissan Sylphy (2017) is 58 mm (2.28 inch) higher, 163 kg (359 lbs) lighter and has 91 liters (3.21 ft3) bigger cargo space than Mazda 3 (Sedan) (2017).