2008 Audi S6 vs. 2004 Audi A8
To start off, 2008 Audi S6 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 5,202 cc (10 cylinders), 2008 Audi S6 is equipped with a bigger engine. In terms of performance, 2008 Audi S6 (429 HP @ 6800 RPM) has 153 more horse power than 2004 Audi A8. (276 HP @ 6000 RPM). In normal driving conditions, 2008 Audi S6 should accelerate faster than 2004 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S6 weights approximately 80 kg more than 2004 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, 2008 Audi S6 (540 Nm @ 3000 RPM) has 180 more torque (in Nm) than 2004 Audi A8. (360 Nm @ 3750 RPM). This means 2008 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A8.
Compare all specifications:
| 2008 Audi S6 | 2004 Audi A8 | |
| Make | Audi | Audi |
| Model | S6 | A8 |
| Year Released | 2008 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5202 cc | 3697 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 429 HP | 276 HP |
| Engine RPM | 6800 RPM | 6000 RPM |
| Torque | 540 Nm | 360 Nm |
| Torque RPM | 3000 RPM | 3750 RPM |
| Engine Bore Size | 84.5 mm | 84.6 mm |
| Engine Stroke Size | 92.8 mm | 82.4 mm |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1910 kg | 1830 kg |
| Vehicle Length | 4920 mm | 5060 mm |
| Vehicle Width | 1870 mm | 1900 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 2850 mm | 2850 mm |
| Fuel Consumption Overall | 13.4 L/100km | 11.7 L/100km |
| Fuel Tank Capacity | 80 L | 90 L |
