2009 Audi A6 vs. 2005 GMC Sierra
To start off, 2009 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2005 GMC Sierra would be higher. At 5,964 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP @ 6500 RPM) has 2 more horse power than 2005 GMC Sierra. (340 HP @ 5200 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2005 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 805 kg more than 2009 Audi A6.
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, 2005 GMC Sierra (516 Nm @ 4000 RPM) has 273 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2005 GMC Sierra | |
| Make | Audi | GMC |
| Model | A6 | Sierra |
| Year Released | 2009 | 2005 |
| Body Type | Station Wagon | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 5964 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 342 HP | 340 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 243 Nm | 516 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 84.6 mm | 102 mm |
| Engine Stroke Size | 92.7 mm | 92 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1540 kg | 2345 kg |
| Vehicle Length | 4920 mm | 5740 mm |
| Vehicle Width | 1470 mm | 2000 mm |
| Vehicle Height | 1860 mm | 1910 mm |
| Wheelbase Size | 2850 mm | 3650 mm |
