Audi Q5 (2018) is 246 mm (9.69 inch) longer, 89 mm (3.50 inch) wider, 165 mm (6.50 inch) higher and has 129 liters (4.56 ft3) bigger cargo space than Mercedes GLA-Class (2015).
Mercedes GLA-Class (2015) is 467 kg (1,030 lbs) lighter than Audi Q5 (2018).