2006 GMC Sierra vs. 2008 Subaru Outback
To start off, 2008 Subaru Outback 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 5,326 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (295 HP @ 5200 RPM) has 50 more horse power than 2008 Subaru Outback. (245 HP @ 6600 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 2008 Subaru Outback. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1074 kg more than 2008 Subaru Outback. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 GMC Sierra (454 Nm @ 4000 RPM) has 157 more torque (in Nm) than 2008 Subaru Outback. (297 Nm @ 4200 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2008 Subaru Outback.
Compare all specifications:
| 2006 GMC Sierra | 2008 Subaru Outback | |
| Make | GMC | Subaru |
| Model | Sierra | Outback |
| Year Released | 2006 | 2008 |
| Body Type | Pickup | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5326 cc | 2999 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 295 HP | 245 HP |
| Engine RPM | 5200 RPM | 6600 RPM |
| Torque | 454 Nm | 297 Nm |
| Torque RPM | 4000 RPM | 4200 RPM |
| Engine Bore Size | 96 mm | 89.2 mm |
| Engine Stroke Size | 92 mm | 80 mm |
| Engine Compression Ratio | 9.4:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2659 kg | 1585 kg |
| Vehicle Length | 6330 mm | 4870 mm |
| Vehicle Height | 1880 mm | 1690 mm |
| Wheelbase Size | 4010 mm | 2680 mm |
| Fuel Consumption Overall | 14.7 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 129 L | 64 L |
