Buick Envision (2017) is 256 mm (10.08 inch) longer, 5 mm (0.20 inch) wider, 86 mm (3.39 inch) higher and has 327 liters (11.55 ft3) bigger cargo space than Mercedes GLA-Class (2018).
Mercedes GLA-Class (2018) is 289 kg (637 lbs) lighter than Buick Envision (2017).