2007 Aston Martin DB9 vs. 2004 Audi A8
To start off, 2007 Aston Martin DB9 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 5,998 cc, 2004 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Aston Martin DB9 (451 HP @ 5750 RPM) has 1 more horse power than 2004 Audi A8. (450 HP @ 6300 RPM). In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2004 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 160 kg more than 2007 Aston Martin DB9.
Because 2004 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2004 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, 2007 Aston Martin DB9 (570 Nm @ 5000 RPM) has 10 more torque (in Nm) than 2004 Audi A8. (560 Nm @ 4000 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A8. 2004 Audi A8 has automatic transmission and 2007 Aston Martin DB9 has manual transmission. 2007 Aston Martin DB9 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Aston Martin DB9 | 2004 Audi A8 | |
| Make | Aston Martin | Audi |
| Model | DB9 | A8 |
| Year Released | 2007 | 2004 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 5998 cc |
| Engine Type | V | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 451 HP | 450 HP |
| Engine RPM | 5750 RPM | 6300 RPM |
| Torque | 570 Nm | 560 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Engine Bore Size | 89 mm | 84.1 mm |
| Engine Stroke Size | 79.5 mm | 90.2 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1995 kg |
| Vehicle Length | 4720 mm | 5060 mm |
| Vehicle Width | 1880 mm | 1900 mm |
| Vehicle Height | 1280 mm | 1450 mm |
| Wheelbase Size | 2750 mm | 2950 mm |
