BMW 3 Series Gran Turismo (2014) is 968 kg (2,134 lbs) lighter than GMC Sierra 3500HD (2015).
GMC Sierra 3500HD (2015) is 876 mm (34.49 inch) longer, 207 mm (8.15 inch) wider, 443 mm (17.44 inch) higher and has 1471 liters (51.95 ft3) bigger cargo space than BMW 3 Series Gran Turismo (2014).