BMW X1 (2018) is 1134 kg (2,500 lbs) lighter than GMC Sierra 2500HD (2017).
GMC Sierra 2500HD (2017) is 1261 mm (49.65 inch) longer, 214 mm (8.43 inch) wider, 378 mm (14.88 inch) higher and has 1213 liters (42.84 ft3) bigger cargo space than BMW X1 (2018).