2009 Audi A8 vs. 2006 GMC Sierra
To start off, 2009 Audi A8 is newer by 3 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 5,358 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP @ 7000 RPM) has 149 more horse power than 2006 GMC Sierra. (295 HP @ 5200 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2006 GMC Sierra.
Let's talk about torque, 2009 Audi A8 (540 Nm @ 3500 RPM) has 86 more torque (in Nm) than 2006 GMC Sierra. (454 Nm @ 4000 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 GMC Sierra.
Compare all specifications:
| 2009 Audi A8 | 2006 GMC Sierra | |
| Make | Audi | GMC |
| Model | A8 | Sierra |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 5358 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 444 HP | 295 HP |
| Engine RPM | 7000 RPM | 5200 RPM |
| Torque | 540 Nm | 454 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 96 mm |
| Engine Stroke Size | 92.8 mm | 92 mm |
| Engine Compression Ratio | 12.5:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline / Electric Hybrid |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5070 mm | 5850 mm |
| Vehicle Width | 1900 mm | 2000 mm |
| Vehicle Height | 1430 mm | 1810 mm |
| Wheelbase Size | 2950 mm | 3650 mm |
| Fuel Consumption Highway | 12.4 L/100km | 11.2 L/100km |
| Fuel Consumption City | 18.2 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 15.8 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 90 L | 98 L |
