BMW 1 Series (2015) is 1319 kg (2,908 lbs) lighter than GMC Sierra 3500HD (2016).
GMC Sierra 3500HD (2016) is 1371 mm (53.98 inch) longer, 270 mm (10.63 inch) wider, 530 mm (20.87 inch) higher and has 1631 liters (57.60 ft3) bigger cargo space than BMW 1 Series (2015).