2009 Audi A8 vs. 2004 Audi A6
To start off, 2009 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 2,965 cc (6 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2004 Audi A6 (247 HP @ 6300 RPM) has 17 more horse power than 2009 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2004 Audi A6 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 792 kg more than 2009 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A6. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 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, 2009 Audi A8 (450 Nm) has 100 more torque (in Nm) than 2004 Audi A6. (350 Nm). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2009 Audi A8 | 2004 Audi A6 | |
| Make | Audi | Audi |
| Model | A8 | A6 |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 2671 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 230 HP | 247 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 450 Nm | 350 Nm |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 91.4 mm | 86 mm |
| Engine Compression Ratio | 17.0:1 | 9.3:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 930 kg | 1722 kg |
| Vehicle Length | 5190 mm | 4880 mm |
| Vehicle Width | 1900 mm | 1940 mm |
| Vehicle Height | 1450 mm | 1460 mm |
| Wheelbase Size | 3080 mm | 2660 mm |
| Fuel Consumption Overall | 8.4 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
