Mazda 3 (Sedan) (2020) is 5 mm (0.20 inch) wider, 11 mm (0.43 inch) higher, 91 kg (201 lbs) lighter and has 17 liters (0.60 ft3) bigger cargo space than Toyota Avalon (2015).
Toyota Avalon (2015) is 38 mm (1.50 inch) longer than Mazda 3 (Sedan) (2020).