2009 Audi A6 vs. 2011 Audi A8
To start off, 2011 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Audi A6. In addition, the cost of maintenance, including insurance, on 2009 Audi A6 would be higher. At 5,204 cc (10 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (430 HP @ 6800 RPM) has 183 more horse power than 2011 Audi A8. (247 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2011 Audi A8.
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, 2011 Audi A8 (550 Nm @ 1500 RPM) has 10 more torque (in Nm) than 2009 Audi A6. (540 Nm @ 3000 RPM). This means 2011 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2011 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2967 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 430 HP | 247 HP |
| Engine RPM | 6800 RPM | 4000 RPM |
| Torque | 540 Nm | 550 Nm |
| Torque RPM | 3000 RPM | 1500 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 243 km/hour |
| Acceleration 0-100mph | 5.2 seconds | 6.1 seconds |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4920 mm | 5136 mm |
| Vehicle Width | 1870 mm | 1948 mm |
| Vehicle Height | 1460 mm | 1461 mm |
| Wheelbase Size | 2850 mm | 2992 mm |
| Fuel Tank Capacity | 80 L | 90 L |
