2007 Audi A6 vs. 2005 Audi A8
To start off, 2007 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 3,697 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (271 HP @ 6000 RPM) has 93 more horse power than 2007 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2005 Audi A8 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 495 kg more than 2007 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Audi A6. In wet, icy, snow, or gravel driving conditions, 2005 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, 2007 Audi A6 (380 Nm @ 1400 RPM) has 20 more torque (in Nm) than 2005 Audi A8. (360 Nm @ 3250 RPM). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2007 Audi A6 | 2005 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 3697 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 178 HP | 271 HP |
| Engine RPM | 3300 RPM | 6000 RPM |
| Torque | 380 Nm | 360 Nm |
| Torque RPM | 1400 RPM | 3250 RPM |
| Engine Bore Size | 83 mm | 84.5 mm |
| Engine Stroke Size | 83.1 mm | 82.4 mm |
| Engine Compression Ratio | 17.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 230 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.4 seconds | 8.9 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1770 kg |
| Vehicle Length | 4920 mm | 5060 mm |
| Vehicle Width | 1860 mm | 1900 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2850 mm | 2890 mm |
| Fuel Consumption Overall | 6.8 L/100km | 11.7 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
