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2021 GMC Sierra 2500HD AT4 - The Ultimate Australian Adventure Machine Rare American Heavy-Duty Excellence This stunning 2021 GMC Sierra 2500HD AT4 represents the pinnacle of heavy-duty capability wrapped in luxury comfort. One of the most capable and versatile vehicles available in Australia, this Sierra delivers unmatched towing power with premium refinement. Legendary Duramax Performance • 6.6L V8 Turbo Diesel Duramax engine • 445 HP with massive 910 lb-ft (1,234 Nm) torque • Allison 10-speed automatic transmission • 4.5-tonne GVM capability • Exceptional fuel efficiency for its class Built for Australian Conditions This Sierra excels across every Australian lifestyle demand: Heavy-duty work capability Effortless caravan towing Boat and jet ski transport Off-grid adventure touring Long-haul nomad travel Remote area confidence AT4 Off-Road Package • Enhanced suspension tuning • Skid plate protection • All-terrain tyre package • Hill descent control • Electronic locking rear differential Luxury Comfort Features • Premium leather-appointed interior • Advanced infotainment system • Comprehensive driver assistance • Multi-zone climate control • Quiet, composed highway cruising • Spacious crew cab configuration Complete Package Includes: • Two keys supplied • Full service history • Loaded with optional extras • Comprehensive pre-delivery inspection • Rare opportunity in Australian market Why Choose This Sierra: Few vehicles combine this level of heavy-duty capability with luxury comfort. Perfect for tradies, caravanners, boaties, and adventure enthusiasts who refuse to compromise on either capability or comfort. Ideal For: • Heavy towing (caravans, boats, trailers) • Trade and commercial applications • Adventure touring and camping • Family transport with serious capability • Long-distance touring confidence This exceptional Sierra represents outstanding value in the heavy-duty segment, offering American capability engineered for Australian conditions. Contact us today to arrange inspection of this remarkable heavy-duty luxury pickup. more
