2005 Audi A8 vs. 2004 Audi RS6
To start off, 2005 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi RS6. In addition, the cost of maintenance, including insurance, on 2004 Audi RS6 would be higher. At 4,170 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2004 Audi RS6 (444 HP @ 6300 RPM) has 114 more horse power than 2005 Audi A8. (330 HP @ 6500 RPM) In normal driving conditions, 2004 Audi RS6 should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi RS6 weights approximately 55 kg more than 2005 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2004 Audi RS6 (560 Nm @ 1950 RPM) has 130 more torque (in Nm) than 2005 Audi A8. (430 Nm @ 3500 RPM). This means 2004 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8. 2005 Audi A8 has automatic transmission and 2004 Audi RS6 has manual transmission. 2004 Audi RS6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A8 | 2004 Audi RS6 | |
| Make | Audi | Audi |
| Model | A8 | RS6 |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 330 HP | 444 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 430 Nm | 560 Nm |
| Torque RPM | 3500 RPM | 1950 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 93 mm | 93 mm |
| Engine Compression Ratio | 11.0:1 | 9.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1855 kg | 1910 kg |
| Vehicle Length | 5060 mm | 4860 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2770 mm | 2770 mm |
| Fuel Consumption Overall | 11.9 L/100km | 14.6 L/100km |
| Fuel Tank Capacity | 90 L | 82 L |
