INFINITI Q50 (2015) is 366 mm (14.41 inch) longer and 20 mm (0.79 inch) wider than Mercedes GLA-Class (2015).
Mercedes GLA-Class (2015) is 41 mm (1.61 inch) higher, 351 kg (774 lbs) lighter and has 39 liters (1.38 ft3) bigger cargo space than INFINITI Q50 (2015).