2005 Audi A4 vs. 2006 Aston Martin DB9
To start off, 2006 Aston Martin DB9 is newer by 1 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 5,932 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 273 more horse power than 2005 Audi A4. (177 HP @ 1500 RPM) In normal driving conditions, 2006 Aston Martin DB9 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 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 2006 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, 2006 Aston Martin DB9 (570 Nm @ 5000 RPM) has 200 more torque (in Nm) than 2005 Audi A4. (370 Nm @ 1500 RPM). This means 2006 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2006 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | A4 | DB9 |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 5932 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 177 HP | 450 HP |
| Engine RPM | 1500 RPM | 6000 RPM |
| Torque | 370 Nm | 570 Nm |
| Torque RPM | 1500 RPM | 5000 RPM |
| Engine Bore Size | 78.3 mm | 89.1 mm |
| Engine Stroke Size | 86.4 mm | 79.5 mm |
| Engine Compression Ratio | 18.5:1 | 10.3:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 9 seconds | 5.1 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1710 kg |
| Vehicle Length | 4550 mm | 4720 mm |
| Vehicle Width | 1770 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2580 mm | 2750 mm |
| Fuel Consumption Overall | 7.8 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 66 L | 83 L |
