2008 Audi A6 vs. 2009 Audi A8
To start off, 2009 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A6. In addition, the cost of maintenance, including insurance, on 2008 Audi A6 would be higher. At 3,123 cc, 2008 Audi A6 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 290 kg more than 2008 Audi A6.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Audi A6. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi A8 (450 Nm @ 1400 RPM) has 119 more torque (in Nm) than 2008 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 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2009 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 2966 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 0 HP | 229 HP |
| Torque | 331 Nm | 450 Nm |
| Torque RPM | 3250 RPM | 1400 RPM |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 91.4 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 243 km/hour |
| Acceleration 0-100mph | 6.9 seconds | 7.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1830 kg |
| Vehicle Height | 1470 mm | 1900 mm |
| Wheelbase Size | 2850 mm | 2950 mm |
| Fuel Consumption Overall | 9.7 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
