2009 Audi A8 vs. 2005 Audi A6
To start off, 2009 Audi A8 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 3,123 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (252 HP @ 6500 RPM) has 22 more horse power than 2009 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A6 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 750 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.
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, 2009 Audi A8 (450 Nm @ 1400 RPM) has 119 more torque (in Nm) than 2005 Audi A6. (331 Nm @ 3250 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6. 2009 Audi A8 has automatic transmission and 2005 Audi A6 has manual transmission. 2005 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A8 | 2005 Audi A6 | |
| Make | Audi | Audi |
| Model | A8 | A6 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 3123 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 230 HP | 252 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 450 Nm | 331 Nm |
| Torque RPM | 1400 RPM | 3250 RPM |
| Engine Bore Size | 83 mm | 84.5 mm |
| Engine Stroke Size | 91.4 mm | 92.8 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 243 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 7.1 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 930 kg | 1680 kg |
| Vehicle Length | 5190 mm | 4920 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 3080 mm | 2770 mm |
| Fuel Consumption Overall | 8.4 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
