Dodge Viper (2014) is 1159 kg (2,555 lbs) lighter than GMC Sierra 3500HD (2018).
GMC Sierra 3500HD (2018) is 1236 mm (48.66 inch) longer, 94 mm (3.70 inch) wider, 730 mm (28.74 inch) higher and has 1575 liters (55.62 ft3) bigger cargo space than Dodge Viper (2014).
