Audi RS 5 (2015) is 877 kg (1,933 lbs) lighter than GMC Sierra 3500HD (2017).
GMC Sierra 3500HD (2017) is 1051 mm (41.38 inch) longer, 176 mm (6.93 inch) wider, 608 mm (23.94 inch) higher and has 1651 liters (58.30 ft3) bigger cargo space than Audi RS 5 (2015).
