2006 GMC Sierra vs. 2005 Hummer H2
To start off, 2006 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Hummer H2. In addition, the cost of maintenance, including insurance, on 2005 Hummer H2 would be higher. At 5,965 cc (8 cylinders), 2005 Hummer H2 is equipped with a bigger engine. In terms of performance, 2005 Hummer H2 (325 HP) has 130 more horse power than 2006 GMC Sierra. (195 HP) In normal driving conditions, 2005 Hummer H2 should accelerate faster than 2006 GMC Sierra.
Because 2005 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 2006 GMC Sierra. In wet, icy, snow, or gravel driving conditions, 2005 Hummer H2 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 Hummer H2 (495 Nm) has 141 more torque (in Nm) than 2006 GMC Sierra. (354 Nm). This means 2005 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2006 GMC Sierra.
Compare all specifications:
| 2006 GMC Sierra | 2005 Hummer H2 | |
| Make | GMC | Hummer |
| Model | Sierra | H2 |
| Year Released | 2006 | 2005 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 4294 cc | 5965 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 195 HP | 325 HP |
| Torque | 354 Nm | 495 Nm |
| Engine Bore Size | 102 mm | 102 mm |
| Engine Stroke Size | 88 mm | 92 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Vehicle Length | 5850 mm | 5180 mm |
| Vehicle Width | 2000 mm | 2070 mm |
| Vehicle Height | 1850 mm | 2020 mm |
| Wheelbase Size | 3650 mm | 3120 mm |
