BMW 1 Series (2015) is 1239 kg (2,732 lbs) lighter than GMC Sierra 3500HD (2014).
GMC Sierra 3500HD (2014) is 1500 mm (59.06 inch) longer, 267 mm (10.51 inch) wider, 558 mm (21.97 inch) higher and has 1631 liters (57.60 ft3) bigger cargo space than BMW 1 Series (2015).