2009 Audi S6 vs. 2008 GMC Sierra
To start off, 2009 Audi S6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2008 GMC Sierra would be higher. At 6,000 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 Audi S6 (435 HP @ 6800 RPM) has 82 more horse power than 2008 GMC Sierra. (353 HP @ 5400 RPM). In normal driving conditions, 2009 Audi S6 should accelerate faster 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, 2009 Audi S6 (540 Nm @ 3000 RPM) has 34 more torque (in Nm) than 2008 GMC Sierra. (506 Nm @ 4400 RPM). This means 2009 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2008 GMC Sierra.
Compare all specifications:
| 2009 Audi S6 | 2008 GMC Sierra | |
| Make | Audi | GMC |
| Model | S6 | Sierra |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 6000 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 435 HP | 353 HP |
| Engine RPM | 6800 RPM | 5400 RPM |
| Torque | 540 Nm | 506 Nm |
| Torque RPM | 3000 RPM | 4400 RPM |
| Engine Compression Ratio | 12.5:1 | 9.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4920 mm | 5720 mm |
| Vehicle Width | 2020 mm | 2440 mm |
| Vehicle Height | 1450 mm | 1960 mm |
| Wheelbase Size | 2850 mm | 3380 mm |
| Fuel Consumption Overall | 14.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 80 L | 129 L |
