2008 GMC Sierra vs. 2006 Hummer H1
To start off, 2008 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Hummer H1. In addition, the cost of maintenance, including insurance, on 2006 Hummer H1 would be higher. At 6,604 cc (8 cylinders), 2006 Hummer H1 is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (316 HP) has 16 more horse power than 2006 Hummer H1. (300 HP). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2006 Hummer H1. With that said, vehicle weight also plays an important factor in acceleration. 2006 Hummer H1 weights approximately 245 kg more than 2008 GMC Sierra.
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, 2006 Hummer H1 (705 Nm @ 1500 RPM) has 247 more torque (in Nm) than 2008 GMC Sierra. (458 Nm @ 4400 RPM). This means 2006 Hummer H1 will have an easier job in driving up hills or pulling heavy equipment than 2008 GMC Sierra.
Compare all specifications:
| 2008 GMC Sierra | 2006 Hummer H1 | |
| Make | GMC | Hummer |
| Model | Sierra | H1 |
| Year Released | 2008 | 2006 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 5300 cc | 6604 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 316 HP | 300 HP |
| Torque | 458 Nm | 705 Nm |
| Torque RPM | 4400 RPM | 1500 RPM |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2659 kg | 2904 kg |
| Vehicle Length | 6320 mm | 4690 mm |
| Vehicle Width | 2040 mm | 2200 mm |
| Vehicle Height | 1870 mm | 1960 mm |
| Wheelbase Size | 4010 mm | 3310 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 129 L | 195 L |
