2008 BMW X5 vs. 2006 GMC Sierra
To start off, 2008 BMW X5 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2006 GMC Sierra would be higher. At 4,797 cc (8 cylinders), 2008 BMW X5 is equipped with a bigger engine. In terms of performance, 2008 BMW X5 (355 HP @ 6200 RPM) has 160 more horse power than 2006 GMC Sierra. (195 HP @ 4600 RPM). In normal driving conditions, 2008 BMW X5 should accelerate faster than 2006 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 117 kg more than 2008 BMW X5.
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 BMW X5 (490 Nm @ 3600 RPM) has 137 more torque (in Nm) than 2006 GMC Sierra. (353 Nm @ 2800 RPM). This means 2008 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 GMC Sierra.
Compare all specifications:
| 2008 BMW X5 | 2006 GMC Sierra | |
| Make | BMW | GMC |
| Model | X5 | Sierra |
| Year Released | 2008 | 2006 |
| Body Type | SUV | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4797 cc | 4293 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 355 HP | 195 HP |
| Engine RPM | 6200 RPM | 4600 RPM |
| Torque | 490 Nm | 353 Nm |
| Torque RPM | 3600 RPM | 2800 RPM |
| Engine Compression Ratio | 11.0:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2200 kg | 2317 kg |
| Vehicle Length | 4670 mm | 5710 mm |
| Vehicle Width | 1880 mm | 2000 mm |
| Vehicle Height | 1710 mm | 1810 mm |
| Wheelbase Size | 2830 mm | 3380 mm |
| Fuel Consumption Overall | 13.5 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 93 L | 129 L |
