2026 GMC Sierra 1500 AT4 Pickup

The right-hand drive 2026 GMC Sierra 1500 AT4 Crew Cab in Volcanic Red Tintcoat represents the perfect fusion of premium refinement, off-road capability, and modern diesel efficiency. Built for those who demand more from their pickup – power, style, and everyday usability – the AT4 delivers uncompromising performance on and off the road.

Under the hood lies the 3.0-litre Duramax® Turbo Diesel inline-six engine, producing 305 horsepower and 670 Nm of torque, paired with a smooth 10-speed automatic transmission. This combination delivers impressive towing performance, confident highway power, and excellent fuel efficiency. The Autotrac® two-speed transfer case and automatic locking rear differential ensure superior traction and control across all terrains.

Each truck is converted to right-hand drive by Autogroup International in our ISO 9001-certified facility, achieving full ADR compliance for Australian roads. Every conversion preserves factory ergonomics, functionality, and technology — maintaining OEM-grade safety, performance, and quality.

The AT4 trim brings rugged sophistication to the Sierra lineup. Distinctive exterior features include Volcanic Red Tintcoat paint, bold AT4 badging, black chrome grille accents, LED reflector headlamps, 20-inch machined aluminium wheels, and Goodyear Wrangler Duratrac® all-terrain tyres. Functional touches such as red recovery hooks, off-road-tuned suspension, skid plates, and the GMC MultiPro tailgate combine durability with premium practicality.

Inside, the AT4 balances toughness with comfort. The Jet Black and Kalahari interior features leather-appointed seating, heated and ventilated front seats, heated rear outboard seats, and a heated leather-wrapped steering wheel. The cabin integrates advanced technology, including a 13.4-inch GMC infotainment system with Google built-in, 12.3-inch digital driver display, wireless Apple CarPlay® and Android Auto™, and Bose® premium audio for immersive sound quality.

Safety and driver assistance are comprehensive, featuring Forward Collision Alert, Automatic Emergency Braking, Lane Keep Assist with Lane Departure Warning, Front Pedestrian Braking, IntelliBeam® Auto High Beams, and Trailer Sway Control for total confidence on the road or trail.

Every Autogroup International right-hand drive conversion is backed by a 5-year unlimited-kilometre warranty, 40,000 km service parts kit, and nationwide 24/7 roadside assistance, ensuring long-term reliability and peace of mind for Australian owners.

The 2026 GMC Sierra 1500 AT4 Crew Cab in Volcanic Red Tintcoat stands as the ultimate blend of diesel power, advanced technology, and professional-grade strength — engineered, converted, and supported by Autogroup International.