Mazda 6 Atenza (2015) is 48 mm (1.89 inch) higher, 121 kg (267 lbs) lighter and has 86 liters (3.04 ft3) bigger cargo space than Mercedes GLA-Class (2016).
Mercedes GLA-Class (2016) is 149 mm (5.87 inch) longer and 36 mm (1.42 inch) wider than Mazda 6 Atenza (2015).