2009 Audi Q7 vs. 2008 Aston Martin DB9
To start off, 2009 Audi Q7 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2008 Aston Martin DB9 would be higher. At 5,934 cc (12 cylinders), 2008 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2008 Aston Martin DB9 (444 HP @ 6000 RPM) has 207 more horse power than 2009 Audi Q7. (237 HP @ 4000 RPM) In normal driving conditions, 2008 Aston Martin DB9 should accelerate faster than 2009 Audi Q7. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 480 kg more than 2008 Aston Martin DB9.
Because 2009 Audi Q7 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2009 Audi Q7 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, 2008 Aston Martin DB9 (570 Nm @ 5000 RPM) has 20 more torque (in Nm) than 2009 Audi Q7. (550 Nm @ 2000 RPM). This means 2008 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi Q7.
Compare all specifications:
| 2009 Audi Q7 | 2008 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | Q7 | DB9 |
| Year Released | 2009 | 2008 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 5934 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 444 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 550 Nm | 570 Nm |
| Torque RPM | 2000 RPM | 5000 RPM |
| Engine Bore Size | 83.1 mm | 89 mm |
| Engine Stroke Size | 91.4 mm | 79.5 mm |
| Engine Compression Ratio | 17.0:1 | 10.3:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 8.5 seconds | 5.1 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2370 kg | 1890 kg |
| Vehicle Length | 5090 mm | 4720 mm |
| Vehicle Width | 1990 mm | 1880 mm |
| Vehicle Height | 1740 mm | 1270 mm |
| Wheelbase Size | 3010 mm | 2750 mm |
| Fuel Consumption Overall | 9.8 L/100km | 17.4 L/100km |
| Fuel Tank Capacity | 100 L | 78 L |
