Mazda 3 (Sedan) (2017) is 5 mm (0.20 inch) longer, 707 kg (1,559 lbs) lighter and has 69 liters (2.44 ft3) bigger cargo space than Mercedes GLC-Class (2014).
Mercedes GLC-Class (2014) is 94 mm (3.70 inch) wider and 214 mm (8.43 inch) higher than Mazda 3 (Sedan) (2017).