Mazda 3 (Sedan) (2017) is 176 kg (388 lbs) lighter than Toyota Avalon (2018).
Toyota Avalon (2018) is 297 mm (11.69 inch) longer, 38 mm (1.50 inch) wider, 15 mm (0.59 inch) higher and has 34 liters (1.20 ft3) bigger cargo space than Mazda 3 (Sedan) (2017).