2009 Audi A8 vs. 2005 Aston Martin DB9
To start off, 2009 Audi A8 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2005 Aston Martin DB9 would be higher. At 5,935 cc (12 cylinders), 2005 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2005 Aston Martin DB9 (444 HP @ 6000 RPM) has 122 more horse power than 2009 Audi A8. (322 HP @ 3750 RPM) In normal driving conditions, 2005 Aston Martin DB9 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 235 kg more than 2005 Aston Martin DB9.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Aston Martin DB9. 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 (650 Nm @ 1600 RPM) has 79 more torque (in Nm) than 2005 Aston Martin DB9. (571 Nm @ 5000 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Aston Martin DB9.
Compare all specifications:
| 2009 Audi A8 | 2005 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | A8 | DB9 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4134 cc | 5935 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 444 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 650 Nm | 571 Nm |
| Torque RPM | 1600 RPM | 5000 RPM |
| Engine Bore Size | 83 mm | 89 mm |
| Engine Stroke Size | 95.5 mm | 79.5 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 250 km/hour | 300 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 5.1 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1710 kg |
| Vehicle Length | 5070 mm | 4710 mm |
| Vehicle Width | 1900 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1320 mm |
| Wheelbase Size | 2950 mm | 2750 mm |
| Fuel Consumption Overall | 9.4 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 90 L | 85 L |
