2007 Aston Martin DB9 vs. 2005 Audi A4
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 A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 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 (450 HP @ 6000 RPM) has 273 more horse power than 2005 Audi A4. (177 HP @ 1500 RPM). In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 120 kg more than 2005 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A4 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, 2005 Audi A4 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 200 more torque (in Nm) than 2005 Audi A4. (370 Nm @ 1500 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2007 Aston Martin DB9 | 2005 Audi A4 | |
| Make | Aston Martin | Audi |
| Model | DB9 | A4 |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 2393 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 177 HP |
| Engine RPM | 6000 RPM | 1500 RPM |
| Torque | 570 Nm | 370 Nm |
| Torque RPM | 5000 RPM | 1500 RPM |
| Engine Bore Size | 89 mm | 78.3 mm |
| Engine Stroke Size | 79.5 mm | 86.4 mm |
| Engine Compression Ratio | 10.3:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 300 km/hour | 212 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1710 kg | 1590 kg |
| Vehicle Length | 4720 mm | 4550 mm |
| Vehicle Width | 1890 mm | 1770 mm |
| Vehicle Height | 1320 mm | 1430 mm |
| Wheelbase Size | 2750 mm | 2580 mm |
| Fuel Consumption Overall | 15.7 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 80 L | 66 L |
