2007 Audi A8 vs. 2009 Audi A6
To start off, 2009 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A8. In addition, the cost of maintenance, including insurance, on 2007 Audi A8 would be higher. At 5,996 cc, 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (444 HP @ 6200 RPM) has 189 more horse power than 2009 Audi A6. (255 HP @ 6500 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 455 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.
Because 2007 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A6. In wet, icy, snow, or gravel driving conditions, 2007 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 A8 (580 Nm @ 4000 RPM) has 250 more torque (in Nm) than 2009 Audi A6. (330 Nm @ 3250 RPM). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2007 Audi A8 | 2009 Audi A6 | |
| Make | Audi | Audi |
| Model | A8 | A6 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5996 cc | 3121 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 255 HP |
| Engine RPM | 6200 RPM | 6500 RPM |
| Torque | 580 Nm | 330 Nm |
| Torque RPM | 4000 RPM | 3250 RPM |
| Engine Bore Size | 84 mm | 84.5 mm |
| Engine Stroke Size | 90.2 mm | 92.8 mm |
| Engine Compression Ratio | 11.0:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 5.1 seconds | 6.9 seconds |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1995 kg | 1540 kg |
| Vehicle Length | 5070 mm | 4930 mm |
| Vehicle Width | 1900 mm | 2040 mm |
| Vehicle Height | 1450 mm | 1460 mm |
| Wheelbase Size | 3080 mm | 2850 mm |
| Fuel Consumption Overall | 13.8 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
