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GMC Sierra 1500 III (GMT900) Extended Cab Long Box 5.3 Vortec V8 (320 Hp) 4WD Automatic FlexFuel
Overall Rating
GMC Sierra 1500:
The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year.
The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name Starting with the LT trim. Standard and "Custom" trims are still called Silverado. Competing against the Ford F-Series, Ram pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year....(Read more on Wikipedia)
III (GMT900) Extended Cab Long Box Overview:
GMC Sierra 1500 (III (GMT900) Extended Cab Long Box). With 461 Nm of torque, it offers ample pulling power. At around 2496 kg, it’s on the heavier side. All‑wheel drive provides excellent grip, ideal for off‑road use. A vehicle with an open cargo bed at the back, suitable for transporting goods. With seating for 6, it’s perfect for larger families.
5.3 Vortec V8 (320 Hp) 4WD Automatic FlexFuel Verdict:
Performance Verdict
An excellent all-rounder, combining strong V8 power with 4WD capability and FlexFuel versatility for any situation.
Fuel Economy
Fuel economy is a typical V8 truck compromise, though the FlexFuel option provides some flexibility in fuel choice.
Pros and Cons:
Pros:
- • Powerful and diverse V8 engine lineup for various needs.
- • Excellent towing and hauling capabilities.
- • Spacious and comfortable Extended Cab interior.
- • Robust and durable GMT900 platform.
- • Available FlexFuel options for fuel versatility.
Cons:
- • Poor fuel economy across all engine options.
- • Interior design, while functional, can feel dated compared to rivals.
- • Large size can make city driving and parking challenging.
- • Ride quality can be firm, especially when unladen.
- • Rear drum brakes on some trims are a drawback.
Specifications:
Specifications are compared to those of the previous generation(II (GMT800): 2002 - 2007).
| General: | |
|---|---|
| Brand: | GMC |
| Model: | Sierra 1500 |
| Generation: | III (GMT900) Extended Cab Long Box |
| Modification (Engine): | 5.3 Vortec V8 (320 Hp) 4WD Automatic FlexFuel |
| Start of production: | 2007 |
| End of production: | 2010 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Pick-up |
| Seats: | 6 |
| Doors: | 2 |
| Engine: | |
|---|---|
| Power: | 320 Hp @ 5200 rpm. Same horsepower |
| Power per litre: | 60.1 Hp/l [1164mm more] |
| Torque: | 461 Nm @ 4200 rpm. |
| Engine Model/Code: | LMG More details about the engine LMG |
| Engine displacement: | 5328 |
| Number of cylinders: | 8 |
| Engine configuration: | V-engine |
| Number of valves per cylinder: | 2 |
| Fuel injection system: | Multi-port manifold injection |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | OHV |
| Engine oil capacity: | 5.7 l |
| Coolant: | 14.1 l |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 96.01 mm mm |
| Piston Stroke: | 91.95 mm mm |
| Compression ratio: | 9.9:1 |
| Maximum engine speed: | 6000 rpm. |
| Performance: | |
|---|---|
| Fuel Type: | Petrol / Ethanol - E85 |
| Fuel consumption (economy) - urban: | 16.8 l/100 km |
| Fuel consumption (economy) - extra urban: | 12.4 l/100 km |
| Weight-to-power ratio: | 7.8 kg/Hp, 128.2 Hp/tonne |
| Weight-to-torque ratio: | 5.4 kg/Nm, 184.7 Nm/tonne |
| Space: | |
|---|---|
| Kerb Weight: | 2496 |
| Max. weight: | 3175 |
| Max load: | 679 |
| Trunk (boot) space - maximum: | 2138 l |
| Permitted trailer load with brakes (12%): | 4173 kg |
| Fuel tank capacity: | 128 l |
| Size: | |
|---|---|
| Ramp-over (brakeover) angle: | 17.8° |
| Length: | 6325 mm mm [1164mm more] |
| Width: | 2029 mm mm [35mm more] |
| Height: | 1868 mm mm [60mm more] |
| Wheelbase: | 4001 mm mm [978mm more] |
| Width including mirrors: | 2029 mm |
| Front track: | 1730 mm |
| Rear (Back) track: | 1702 mm |
| Ride height (ground clearance): | 240 mm |
| Minimum turning circle (turning diameter): | 15.6 m [above average] |
| Approach angle: | 16.4° |
| Departure angle: | 22° |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4x4) |
| Number of gears | 6 |
| Transmission type | Automatic |
| Gearbox type | Hydra-Matic |
| Front brakes | Disc, 330x30 mm [bad for performance and cooling.] |
| Rear brakes | Drum, 295x60 mm [bad for performance and cooling.] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/70 R17 |
| Wheel rims size | 7.5J x 17 |
| Front suspension | Independent coil spring |
| Rear suspension | Rigid axle suspension, Leaf spring |
The hidden gems or the annoying flaws? Expose the truth about the GMC Sierra 1500!