Alfa Romeo Stelvio (2019) is 54 mm (2.13 inch) wider than GMC Terrain (2014).
GMC Terrain (2014) is 20 mm (0.79 inch) longer, 13 mm (0.51 inch) higher, 3 kg (7 lbs) lighter and has 1267 liters (44.74 ft3) bigger cargo space than Alfa Romeo Stelvio (2019).