Mercedes GLA-Class (2015) is 10 kg (22 lbs) lighter than Opel Astra (2015).
Opel Astra (2015) is 241 mm (9.49 inch) longer, 10 mm (0.39 inch) wider, 6 mm (0.24 inch) higher and has 39 liters (1.38 ft3) bigger cargo space than Mercedes GLA-Class (2015).