2009 Audi A6 vs. 2004 Audi A8
To start off, 2009 Audi A6 is newer by 5 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 3,697 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (220 HP @ 6300 RPM) has 43 more horse power than 2009 Audi A6. (177 HP @ 3300 RPM) In normal driving conditions, 2004 Audi A8 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 340 kg more than 2009 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 2009 Audi A6 (380 Nm @ 1400 RPM) has 80 more torque (in Nm) than 2004 Audi A8. (300 Nm @ 8200 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A8. 2009 Audi A6 has automatic transmission and 2004 Audi A8 has manual transmission. 2004 Audi A8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A6 | 2004 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 2976 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 177 HP | 220 HP |
| Engine RPM | 3300 RPM | 6300 RPM |
| Torque | 380 Nm | 300 Nm |
| Torque RPM | 1400 RPM | 8200 RPM |
| Engine Bore Size | 83 mm | 82.5 mm |
| Engine Stroke Size | 83.1 mm | 92.8 mm |
| Engine Compression Ratio | 17.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 225 km/hour | 242 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 8.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1655 kg | 1995 kg |
| Vehicle Length | 4920 mm | 5190 mm |
| Vehicle Width | 1470 mm | 1900 mm |
| Vehicle Height | 1860 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 3080 mm |
| Fuel Consumption Overall | 7.2 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
