BMW X1 (2018) is 119 kg (262 lbs) lighter than GMC Sierra 2500HD (2015).
GMC Sierra 2500HD (2015) is 1644 mm (64.72 inch) longer, 224 mm (8.82 inch) wider, 390 mm (15.35 inch) higher and has 1222 liters (43.15 ft3) bigger cargo space than BMW X1 (2018).