2006 Aston Martin DB9 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2006 Aston Martin DB9 would be higher. At 5,932 cc (12 cylinders), 2006 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2006 Aston Martin DB9 (450 HP @ 6000 RPM) has 198 more horse power than 2009 Audi A4. (252 HP @ 6500 RPM). In normal driving conditions, 2006 Aston Martin DB9 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Aston Martin DB9 weights approximately 550 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2009 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, 2006 Aston Martin DB9 (570 Nm @ 5000 RPM) has 240 more torque (in Nm) than 2009 Audi A4. (330 Nm @ 3250 RPM). This means 2006 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2006 Aston Martin DB9 | 2009 Audi A4 | |
| Make | Aston Martin | Audi |
| Model | DB9 | A4 |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5932 cc | 3189 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 252 HP |
| Engine RPM | 6000 RPM | 6500 RPM |
| Torque | 570 Nm | 330 Nm |
| Torque RPM | 5000 RPM | 3250 RPM |
| Engine Bore Size | 89.1 mm | 84.5 mm |
| Engine Stroke Size | 79.5 mm | 92.8 mm |
| Engine Compression Ratio | 10.3:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 5.1 seconds | 6.4 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1710 kg | 1160 kg |
| Vehicle Length | 4720 mm | 4550 mm |
| Vehicle Width | 1880 mm | 1780 mm |
| Vehicle Height | 1320 mm | 1430 mm |
| Wheelbase Size | 2750 mm | 2660 mm |
| Fuel Consumption Overall | 15.7 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 83 L | 70 L |
