Mazda 6 Atenza (2017) is 48 mm (1.89 inch) higher, 121 kg (267 lbs) lighter and has 100 liters (3.53 ft3) bigger cargo space than Mercedes GLA-Class (2014).
Mercedes GLA-Class (2014) is 142 mm (5.59 inch) longer and 36 mm (1.42 inch) wider than Mazda 6 Atenza (2017).