2005 Audi RS6 vs. 2008 GMC Sierra
To start off, 2008 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi RS6. In addition, the cost of maintenance, including insurance, on 2005 Audi RS6 would be higher. At 5,999 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 90 more horse power than 2008 GMC Sierra. (354 HP @ 5400 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2008 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 316 kg more than 2005 Audi RS6.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 GMC Sierra. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 will offer significantly more control. 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 Audi RS6 (560 Nm @ 1950 RPM) has 54 more torque (in Nm) than 2008 GMC Sierra. (506 Nm @ 4400 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2008 GMC Sierra.
Compare all specifications:
| 2005 Audi RS6 | 2008 GMC Sierra | |
| Make | Audi | GMC |
| Model | RS6 | Sierra |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4171 cc | 5999 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 444 HP | 354 HP |
| Engine RPM | 5700 RPM | 5400 RPM |
| Torque | 560 Nm | 506 Nm |
| Torque RPM | 1950 RPM | 4400 RPM |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1825 kg | 2141 kg |
| Vehicle Length | 4800 mm | 6580 mm |
| Vehicle Height | 1460 mm | 1940 mm |
| Wheelbase Size | 2770 mm | 4250 mm |
| Fuel Consumption Overall | 14.6 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 82 L | 129 L |
