Mercedes GLA-Class (2017) is 587 kg (1,294 lbs) lighter than Mercedes M-Class (2015).
Mercedes M-Class (2015) is 394 mm (15.51 inch) longer, 92 mm (3.62 inch) wider, 177 mm (6.97 inch) higher and has 255 liters (9.01 ft3) bigger cargo space than Mercedes GLA-Class (2017).