2006 Audi A8 vs. 2004 Audi A8
To start off, 2006 Audi A8 is newer by 2 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 5,997 cc, 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (450 HP @ 6200 RPM) has 174 more horse power than 2004 Audi A8. (276 HP @ 6000 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2004 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 315 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, 2006 Audi A8 (580 Nm @ 4000 RPM) has 220 more torque (in Nm) than 2004 Audi A8. (360 Nm @ 3750 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A8.
Compare all specifications:
| 2006 Audi A8 | 2004 Audi A8 | |
| Make | Audi | Audi |
| Model | A8 | A8 |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5997 cc | 3697 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 450 HP | 276 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 580 Nm | 360 Nm |
| Torque RPM | 4000 RPM | 3750 RPM |
| Engine Bore Size | 84 mm | 84.6 mm |
| Engine Stroke Size | 90.2 mm | 82.4 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2145 kg | 1830 kg |
| Vehicle Length | 5200 mm | 5060 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 3080 mm | 2850 mm |
| Fuel Consumption Overall | 13.8 L/100km | 11.7 L/100km |
| Fuel Tank Capacity | 90 L | 90 L |
