BMW 8 Series (G16) (2019) is 375 mm (14.76 inch) longer and 83 mm (3.27 inch) wider than GMC Terrain (2014).
GMC Terrain (2014) is 277 mm (10.91 inch) higher, 146 kg (322 lbs) lighter and has 1352 liters (47.75 ft3) bigger cargo space than BMW 8 Series (G16) (2019).