Audi A4 Allroad (2019) is 340 mm (13.39 inch) longer, 8 mm (0.31 inch) wider and has 70 liters (2.47 ft3) bigger cargo space than Mercedes GLA-Class (2017).
Mercedes GLA-Class (2017) is 118 mm (4.65 inch) higher and 92 kg (203 lbs) lighter than Audi A4 Allroad (2019).