Audi A4 (2014) is 1308 kg (2,884 lbs) lighter than GMC Sierra 2500HD (2014).
GMC Sierra 2500HD (2014) is 1014 mm (39.92 inch) longer, 206 mm (8.11 inch) wider, 562 mm (22.13 inch) higher and has 1238 liters (43.72 ft3) bigger cargo space than Audi A4 (2014).
