2005 Audi RS6 vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra is newer by 1 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 5,996 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 6300 RPM) has 99 more horse power than 2006 GMC Sierra. (345 HP @ 5200 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2006 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 568 kg more than 2005 Audi RS6.
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 Audi RS6 (560 Nm @ 1950 RPM) has 45 more torque (in Nm) than 2006 GMC Sierra. (515 Nm @ 4000 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2006 GMC Sierra.
Compare all specifications:
| 2005 Audi RS6 | 2006 GMC Sierra | |
| Make | Audi | GMC |
| Model | RS6 | Sierra |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 5996 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 444 HP | 345 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 560 Nm | 515 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 102 mm |
| Engine Stroke Size | 93 mm | 92 mm |
| Engine Compression Ratio | 9.0:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1910 kg | 2478 kg |
| Vehicle Length | 4800 mm | 5850 mm |
| Vehicle Width | 1820 mm | 2000 mm |
| Vehicle Height | 1460 mm | 1910 mm |
| Wheelbase Size | 2660 mm | 3650 mm |
| Fuel Consumption Overall | 14.8 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 70 L | 98 L |
