Mazda 3 (Sedan) (2020) is 439 mm (17.28 inch) longer, 632 kg (1,393 lbs) lighter and has 42 liters (1.48 ft3) bigger cargo space than Nissan Sentra (2017).
Nissan Sentra (2017) is 15 mm (0.59 inch) wider and 165 mm (6.50 inch) higher than Mazda 3 (Sedan) (2020).
