2005 GMC Sierra vs. 2008 Hummer H3
To start off, 2008 Hummer H3 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2005 GMC Sierra would be higher. At 5,358 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 32 kg more than 2008 Hummer H3.
Because 2008 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2005 GMC Sierra. In wet, icy, snow, or gravel driving conditions, 2008 Hummer H3 will offer significantly more control. 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, 2005 GMC Sierra (454 Nm) has 126 more torque (in Nm) than 2008 Hummer H3. (328 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2008 Hummer H3.
Compare all specifications:
| 2005 GMC Sierra | 2008 Hummer H3 | |
| Make | GMC | Hummer |
| Model | Sierra | H3 |
| Year Released | 2005 | 2008 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 5358 cc | 3653 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 295 HP | 0 HP |
| Torque | 454 Nm | 328 Nm |
| Engine Bore Size | 96 mm | 95.5 mm |
| Engine Stroke Size | 92 mm | 102 mm |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2263 kg | 2231 kg |
| Vehicle Length | 5850 mm | 5180 mm |
| Vehicle Height | 1850 mm | 2020 mm |
| Wheelbase Size | 3650 mm | 2850 mm |
| Fuel Consumption Overall | 13.1 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 98 L | 87 L |
