Mazda 3 (Sedan) (2017) is 30 mm (1.18 inch) longer and 36 mm (1.42 inch) wider than Nissan Sylphy (2016).
Nissan Sylphy (2016) is 58 mm (2.28 inch) higher, 123 kg (271 lbs) lighter and has 91 liters (3.21 ft3) bigger cargo space than Mazda 3 (Sedan) (2017).