Acura RDX (2015) is 918 kg (2,024 lbs) lighter than GMC Sierra 2500HD (2017).
GMC Sierra 2500HD (2017) is 1040 mm (40.94 inch) longer, 163 mm (6.42 inch) wider, 298 mm (11.73 inch) higher and has 979 liters (34.57 ft3) bigger cargo space than Acura RDX (2015).
