Audi TTS (2017) is 109 kg (240 lbs) lighter than GMC Sierra 2500HD (2015).
GMC Sierra 2500HD (2015) is 1892 mm (74.49 inch) longer, 214 mm (8.43 inch) wider, 647 mm (25.47 inch) higher and has 1387 liters (48.98 ft3) bigger cargo space than Audi TTS (2017).
