2009 Aston Martin DB9 vs. 2004 Audi A4
To start off, 2009 Aston Martin DB9 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 5,933 cc (12 cylinders), 2009 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2009 Aston Martin DB9 (510 HP @ 6500 RPM) has 349 more horse power than 2004 Audi A4. (161 HP @ 5700 RPM). In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Aston Martin DB9 weights approximately 230 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2004 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, 2009 Aston Martin DB9 (570 Nm @ 5750 RPM) has 340 more torque (in Nm) than 2004 Audi A4. (230 Nm @ 1950 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2009 Aston Martin DB9 | 2004 Audi A4 | |
| Make | Aston Martin | Audi |
| Model | DB9 | A4 |
| Year Released | 2009 | 2004 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5933 cc | 1781 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 510 HP | 161 HP |
| Engine RPM | 6500 RPM | 5700 RPM |
| Torque | 570 Nm | 230 Nm |
| Torque RPM | 5750 RPM | 1950 RPM |
| Engine Bore Size | 89 mm | 81 mm |
| Engine Stroke Size | 79.5 mm | 86.4 mm |
| Engine Compression Ratio | 10.9:1 | 9.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 305 km/hour | 223 km/hour |
| Acceleration 0-100mph | 4.5 seconds | 8.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1760 kg | 1530 kg |
| Vehicle Length | 4730 mm | 4550 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1290 mm | 1430 mm |
| Wheelbase Size | 2750 mm | 2580 mm |
| Fuel Consumption Highway | 12.4 L/100km | 7.1 L/100km |
| Fuel Consumption City | 19.7 L/100km | 12.8 L/100km |
| Fuel Consumption Overall | 16.3 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 78 L | 63 L |
