Mercedes GLA-Class (2017) is 349 mm (13.74 inch) longer, 141 mm (5.55 inch) wider, 166 mm (6.54 inch) higher and has 143 liters (5.05 ft3) bigger cargo space than Seat Ibiza (2014).
Seat Ibiza (2014) is 374 kg (825 lbs) lighter than Mercedes GLA-Class (2017).