2008 GMC Sierra vs. 2008 Hummer H3
To start off, both 2008 GMC Sierra and 2008 Hummer H3 were released in the same year (2008). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 6,000 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (364 HP @ 5400 RPM) has 64 more horse power than 2008 Hummer H3. (300 HP @ 5200 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2008 Hummer H3.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2008 GMC Sierra (506 Nm @ 4400 RPM) has 71 more torque (in Nm) than 2008 Hummer H3. (435 Nm @ 4000 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2008 Hummer H3.
Compare all specifications:
| 2008 GMC Sierra | 2008 Hummer H3 | |
| Make | GMC | Hummer |
| Model | Sierra | H3 |
| Year Released | 2008 | 2008 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 6000 cc | 5328 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 364 HP | 300 HP |
| Engine RPM | 5400 RPM | 5200 RPM |
| Torque | 506 Nm | 435 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 5710 mm | 4750 mm |
| Vehicle Width | 2040 mm | 2180 mm |
| Vehicle Height | 1940 mm | 1860 mm |
| Wheelbase Size | 3380 mm | 2850 mm |
| Fuel Consumption Overall | 13.1 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 129 L | 87 L |
