BMW X3 (2019) is 652 kg (1,437 lbs) lighter than GMC Sierra 3500HD (2017).
GMC Sierra 3500HD (2017) is 973 mm (38.31 inch) longer, 138 mm (5.43 inch) wider, 310 mm (12.20 inch) higher and has 1441 liters (50.89 ft3) bigger cargo space than BMW X3 (2019).
