Mazda 3 (Sedan) (2020) is 264 mm (10.39 inch) longer, 622 kg (1,371 lbs) lighter and has 120 liters (4.24 ft3) bigger cargo space than Mercedes GLC-Class (2016).
Mercedes GLC-Class (2016) is 51 mm (2.01 inch) wider and 188 mm (7.40 inch) higher than Mazda 3 (Sedan) (2020).