The 2025 GMC Sierra 1500 is a petrol pickup with AWD and seating for 6. It belongs to the Gen 4 LCI generation. The Denali 6.2L V8 is the version described here, and the figures below refer to that configuration unless noted otherwise.
Performance
The featured Denali 6.2L V8 version develops 420 hp and 624 Nm (460 lb-ft) of torque. Its listed 0-100 km/h time is 6.0 seconds, which is decisively quick for everyday road use. Top speed is listed at 185 km/h (115 mph). Its power output is about 20% above the peer average. Its 0-100 km/h time is about 9% quicker than the peer average. The figures establish its straight-line performance on paper, but they do not substitute for measured braking, handling or ride-quality tests.
Fuel economy and range
The listed fuel consumption is 14.7 L/100km. Fuel-tank capacity is 91.0 litres (24.0 US gallons). Recorded CO2 emissions are 336 g/km. Consumption, emissions and range can be measured under different regional procedures, so like-for-like comparisons should use the same market and test cycle.
Dimensions and practicality
Its exterior dimensions are 5,887 mm (231.8 in) in length, 2,062 mm (81.2 in) in width, and 1,917 mm (75.5 in) in height, while the wheelbase measures 3,745 mm (147.4 in). The cabin is configured for 6 occupants. Listed curb weight is 2,530 kg (5,578 lb). The recorded braked towing capacity is 5,443 kg (12,000 lb). The measurements are useful for comparison, although seat comfort, access and the shape of the load area still need to be judged in person.
The model range
The recorded line-up consists of SLE 2.7L Turbo and Denali 6.2L V8. Across the range, the specifications span 310 hp to 420 hp and 6.0 s to 6.5 s, while listed starting prices run from $44,900-$65,200. Drivetrain, battery or engine choice, wheels and market equipment can all change the final figures, so the version table should be used when choosing between them.
In perspective
Compared with nearby petrol pickup models from the same period, the 2025 GMC Sierra 1500 is strongest on power and towing capacity, while price stands out as the principal numerical compromise. That conclusion is drawn from the recorded specifications rather than a road test. A final choice should also account for local pricing, equipment, comfort and a test drive.
Prepared by CarsbySpec. Peer context: 2024-2026 petrol pickups in the CarsbySpec database. This page is built from the structured specifications displayed here; missing values are not estimated. Read the methodology.
