Mercedes GLA-Class (2014) is 358 mm (14.09 inch) longer, 24 mm (0.94 inch) wider, 50 mm (1.97 inch) higher and has 66 liters (2.33 ft3) bigger cargo space than Seat Ibiza (2017).
Seat Ibiza (2017) is 304 kg (670 lbs) lighter than Mercedes GLA-Class (2014).