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 5,359 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 Hummer H3 (300 HP) has 5 more horse power than 2005 GMC Sierra. (295 HP) In normal driving conditions, 2008 Hummer H3 should accelerate faster than 2005 GMC Sierra.
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 19 more torque (in Nm) than 2008 Hummer H3. (435 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 | 5359 cc | 5328 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 295 HP | 300 HP |
| Torque | 454 Nm | 435 Nm |
| Fuel Type | Gasoline / Electric Hybrid | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5850 mm | 4750 mm |
| Vehicle Width | 2000 mm | 2180 mm |
| Vehicle Height | 1810 mm | 1860 mm |
| Wheelbase Size | 3650 mm | 2850 mm |
| Fuel Consumption | 11.2 L/100km | 14.7 L/100km |
| Fuel Consumption City | 13.1 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 98 L | 87 L |
