2005 Audi S8 vs. 2007 Aston Martin DB9
To start off, 2007 Aston Martin DB9 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 would be higher. At 5,935 cc (12 cylinders), 2007 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2007 Aston Martin DB9 (451 HP @ 5750 RPM) has 204 more horse power than 2005 Audi S8. (247 HP @ 4000 RPM) In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2005 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 65 kg more than 2005 Audi S8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2007 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2005 Audi S8 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, 2007 Aston Martin DB9 (570 Nm @ 5000 RPM) has 120 more torque (in Nm) than 2005 Audi S8. (450 Nm @ 3400 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S8.
Compare all specifications:
| 2005 Audi S8 | 2007 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | S8 | DB9 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 5935 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 451 HP |
| Engine RPM | 4000 RPM | 5750 RPM |
| Torque | 450 Nm | 570 Nm |
| Torque RPM | 3400 RPM | 5000 RPM |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1835 kg |
| Wheelbase Size | 2290 mm | 2750 mm |
| Fuel Tank Capacity | 90 L | 78 L |
