2026 GMC Sierra 1500
Vehicle Make:
GMC Sierra 1500
Config:
Short, Standard & Long Bed | Regular, Double & Crew Cab
Trim Options:
AT4, Denali, AT4X, Denali Ultimate
Engine Options:
3.0L Duramax, 6.2L V8 Petrol
American Power. Australian Ready.
The 2025 GMC Sierra 1500 redefines what a full-size pickup can be. From the rugged AT4X with its Multimatic DSSV dampers and electronic lockers to the luxurious Denali Ultimate with massaging seats and Super Cruise technology, there’s a Sierra built for your specific needs. With three powerful engine options – including the torquey 3.0L Duramax diesel – and up to 4,128kg towing capacity, this isn’t just another truck. It’s engineered American capability that doesn’t compromise on refinement or technology.
Built for Australia, Backed by Excellence
Every Sierra 1500 arrives in Australia through Autogroup International’s ISO 9001:2015 certified conversion facility, ensuring full ADR compliance without sacrificing the truck’s core DNA. Our professional right-hand drive conversion process maintains factory safety standards while adapting this American icon for Australian roads. From the AT4’s aggressive off-road stance to the Denali’s premium leather appointments, you’re getting authentic GMC engineering with local support and a full factory-backed warranty. This is American truck capability, delivered Australian style.
Experience The GMC Sierra 1500
AT4
Luxurious pickup with standard off-road suspension, active exhaust, and 3.0L Duramax Turbo Diesel. Includes GMC MultiPro Tailgate, ventilated seats, HD Surround Vision, keyless start, and GMC Pro Safety. Optional 6.2L V8 and CarbonPro bed available.
AT4X
The Sierra 1500 AT4X is the most off-road capable factory Sierra ever. Features driver-selectable locking differentials, 2" lift with Multimatic dampers, and luxurious Obsidian Rush interior with massaging leather seats and 12-speaker Bose system. Standard 3.0L Duramax Turbo-Diesel, optional 6.2L V8.
DENALI
Luxury pickup featuring standard 5.3L EcoTec3 V8, with optional 3.0L Duramax Turbo Diesel or 6.2L V8. Includes AT4/AT4X features plus Super Cruise, collision alert, pedestrian braking, lane keep assist, automatic emergency braking and advanced safety technologies.
DENALI ULTIMATE
The ultimate luxury pickup with exclusive 22" wheels, power steps, sunroof and Bose 12-speaker system with head-up display. Features leather steering wheel, rear camera mirror and premium exterior styling. Standard 6.2L EcoTec3 V8 with optional 3.0L Duramax Turbo Diesel available.
HUMMER EV 2X
Lighten the load, Increase efficiency
- Interior Options: Granite Drift, Premium leather-alternative seating surfaces, Stealth Eclipse (Late Availability)
- Front Bucket Seats.
- Infinity Roof, with removable opaque Sky Panels.
- 12.3" diagonal color Driver Information Center
- Bose 14-speaker Surround with CenterPoint® audio system
HUMMER EV 3X
Flagship Performance and Power
- Interior Options: Granite Drift, Premium leather-alternative seating surfaces, Stealth Eclipse (Late Availability)
- Front Bucket Seats.
- Infinity Roof, with removable opaque Sky Panels.
- 12.3" diagonal color Driver Information Center
- Bose 14-speaker Surround with CenterPoint® audio system
3X CARBON FIBRE EDITION
Limited Edition
- Velocity Ember Interior.
- Front Bucket Seats.
- Infinity Roof, with removable opaque Sky Panels
HUMMER EV 2X
Lighten the load, Increase efficiency
- Optional 18" Grazen Face Beadlock capable wheels with Tech Bronze Decorative Ring.
- Front Off-Road Auxiliary Lights.
- GMC MultiPro tailgate with Step Lights.
- Optional Illumination Package.
- Optional Lifestyle Adventure Package
HUMMER EV 3X
Flagship Performance and Power
- Optional 18" Grazen Face Beadlock capable wheels with Tech Bronze Decorative Ring.
- Front Off-Road Auxiliary Lights.
- GMC MultiPro tailgate with Step Lights.
- Optional Illumination Package.
- Optional Lifestyle Adventure Package.
- Two additional exterior paint colors available – Coastal Dune and Auburn Matte
3X CARBON FIBRE EDITION
Limited Edition
- 22” Black Carbon Fiber wheels with black wheel center cap featuring HUMMER EV Logo
Carbon Fiber skid plate insert, black-painted metal approach shield, available Carbon Fiber hood insert and available Carbon Fiber mirror caps. - Black Emblems.
- All Terrain Tyres
HUMMER EV 2X
Lighten the load, Increase efficiency
- StabiliTrak, electronic stability control system with traction control.
- Trailer Side Blind Zone Alert.
- Forward Collision Alert.
- Safety Alert Seat.
- Tire Pressure Monitoring System with Tire Fill Alert.
- Enhanced Automatic Emergency Braking
HUMMER EV 3X
Flagship Performance and Power
- StabiliTrak, electronic stability control system with traction control.
- Trailer Side Blind Zone Alert.
- Forward Collision Alert.
- Safety Alert Seat.
- Tire Pressure Monitoring System with Tire Fill Alert.
- Enhanced Automatic Emergency Braking
3X CARBON FIBRE EDITION
Limited Edition
- StabiliTrak, electronic stability control system with traction control.
- Trailer Side Blind Zone Alert.
- Forward Collision Alert.
- Safety Alert Seat.
- Tire Pressure Monitoring System with Tire Fill Alert.
- Enhanced Automatic Emergency Braking
Leader in Right Hand Drive American Vehicle...
Is there a warranty for the vehicles you sell?
Every vehicle includes a Factory-Backed 3-Year Warranty with conditions identical to the original manufacturer's warranty.
Are your right-hand drive conversions compliant with Australian standards?
Absolutely. Our vehicles meet Australian Motor Vehicle Standards Act requirements and we're ISO 9001:2015 certified for RHD conversions.
Where do you provide servicing in Australia?
All servicing is performed at our Australian facility, based in Melbourne, by our trained technicians who specialise in converted American vehicles.
Do you supply genuine spare parts?
Yes. Our Australian parts team stocks OEM-grade service parts, accessories, and consumables specifically for converted American vehicles.
Can I schedule a test drive?
Absolutely! You can schedule a test drive by heading over to the contact page and getting in touch with our team.
AT4
The Off-Road Ready
- Duramax® 3.0L Turbo-Diesel engine with 10-speed automatic transmission
- 2" factory lift with off-road suspension and Rancho® monotube shocks
- Two-speed Autotrac® transfer case and underbody skid plates
- Unique Jet Black interior with Kalahari accents, and heated and ventilated perforated leather front seating surfaces
AT4X
Extreme Off-road capability
- Features driver-selectable locking differentials.
- 2" lift with Multimatic dampers,.
- Luxurious Obsidian Rush interior with massaging leather seats.
- 12-speaker Bose system.
- Standard 3.0L Duramax Turbo-Diesel, optional 6.2L V8.
AT4X AEV EDITION
Limited Edition
- Front and rear electronic locking differentials
- Multimatic DSSV dampers
- AEV stamped steel front bumper with front winch capability
- 16-way power heated and ventilated front seats with massage feature
DENALI
Flagship Performance and Power
Tri-motor e4WD system producing up to 1,000 hp and 11,500 lb-ft of torque
Supports 800-volt DC fast charging for rapid recharging
GM-estimated range of up to around 350 miles (approx. 560 km) depending on driving conditions.
Available Extreme Off-Road Package with underbody armor, off-road tyres, and added trail tech for serious 4x4 use.
- New King Crab rear-steer mode (evolved from CrabWalk) and bidirectional charging, boosting maneuverability and utility.
DENALI ULTIMATE
Flagship Performance and Power
Tri-motor e4WD system producing up to 1,000 hp and 11,500 lb-ft of torque
Supports 800-volt DC fast charging for rapid recharging
GM-estimated range of up to around 350 miles (approx. 560 km) depending on driving conditions.
Available Extreme Off-Road Package with underbody armor, off-road tyres, and added trail tech for serious 4x4 use.
- New King Crab rear-steer mode (evolved from CrabWalk) and bidirectional charging, boosting maneuverability and utility.
HUMMER EV 2X
Lighten the load, Increase efficiency
- Interior Options: Granite Drift, Premium leather-alternative seating surfaces, Stealth Eclipse (Late Availability)
- Front Bucket Seats.
- Infinity Roof, with removable opaque Sky Panels.
- 12.3" diagonal color Driver Information Center
- Bose 14-speaker Surround with CenterPoint® audio system
HUMMER EV 3X
Flagship Performance and Power
- Interior Options: Granite Drift, Premium leather-alternative seating surfaces, Stealth Eclipse (Late Availability)
- Front Bucket Seats.
- Infinity Roof, with removable opaque Sky Panels.
- 12.3" diagonal color Driver Information Center
- Bose 14-speaker Surround with CenterPoint® audio system
3X CARBON FIBRE EDITION
Limited Edition
- Velocity Ember Interior.
- Front Bucket Seats.
- Infinity Roof, with removable opaque Sky Panels