2005 Audi A8 vs. 2008 Aston Martin DB9
To start off, 2008 Aston Martin DB9 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 5,935 cc (12 cylinders), 2008 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2008 Aston Martin DB9 (444 HP @ 6000 RPM) has 109 more horse power than 2005 Audi A8. (335 HP @ 4000 RPM) In normal driving conditions, 2008 Aston Martin DB9 should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 110 kg more than 2008 Aston Martin DB9.
Let's talk about torque, 2008 Aston Martin DB9 (571 Nm) has 141 more torque (in Nm) than 2005 Audi A8. (430 Nm). This means 2008 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2008 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | A8 | DB9 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 5935 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 444 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 430 Nm | 571 Nm |
| Engine Bore Size | 85 mm | 89 mm |
| Engine Stroke Size | 93 mm | 79.5 mm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1835 kg |
| Vehicle Length | 5060 mm | 4720 mm |
| Vehicle Width | 1900 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1280 mm |
| Wheelbase Size | 2950 mm | 2750 mm |
| Fuel Consumption | 9.8 L/100km | 12.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 16.5 L/100km |
| Fuel Tank Capacity | 90 L | 78 L |
