2009 Audi A6 vs. 2008 Audi A8
To start off, 2009 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A8. In addition, the cost of maintenance, including insurance, on 2008 Audi A8 would be higher. At 3,129 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP @ 6500 RPM) has 135 more horse power than 2008 Audi A8. (207 HP @ 5500 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 150 kg more than 2009 Audi A6.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Audi A8. In wet, icy, snow, or gravel driving conditions, 2009 Audi A6 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, 2008 Audi A8 (280 Nm @ 3000 RPM) has 37 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2008 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 | 2008 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2009 | 2008 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 2772 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 207 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 243 Nm | 280 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 84.6 mm | 84.5 mm |
| Engine Stroke Size | 92.7 mm | 82.4 mm |
| Engine Compression Ratio | 12.5:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 209 km/hour | 238 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 8 seconds |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1690 kg |
| Vehicle Length | 4920 mm | 5070 mm |
| Vehicle Width | 1470 mm | 1900 mm |
| Vehicle Height | 1860 mm | 1450 mm |
| Wheelbase Size | 2850 mm | 2950 mm |
| Fuel Consumption Overall | 15.5 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
