2003 Aston Martin DB9 vs. 2006 Porsche 911
To start off, 2006 Porsche 911 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2003 Aston Martin DB9 would be higher. At 5,935 cc (12 cylinders), 2003 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2003 Aston Martin DB9 (450 HP @ 6000 RPM) has 125 more horse power than 2006 Porsche 911. (325 HP @ 6800 RPM). In normal driving conditions, 2003 Aston Martin DB9 should accelerate faster than 2006 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2006 Porsche 911 weights approximately 25 kg more than 2003 Aston Martin DB9.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2003 Aston Martin DB9 (557 Nm @ 5000 RPM) has 187 more torque (in Nm) than 2006 Porsche 911. (370 Nm @ 4250 RPM). This means 2003 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2006 Porsche 911.
Compare all specifications:
| 2003 Aston Martin DB9 | 2006 Porsche 911 | |
| Make | Aston Martin | Porsche |
| Model | DB9 | 911 |
| Year Released | 2003 | 2006 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5935 cc | 3589 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 325 HP |
| Engine RPM | 6000 RPM | 6800 RPM |
| Torque | 557 Nm | 370 Nm |
| Torque RPM | 5000 RPM | 4250 RPM |
| Engine Bore Size | 89 mm | 96.1 mm |
| Engine Stroke Size | 79.5 mm | 83 mm |
| Acceleration 0-100mph | 4.9 seconds | 5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1710 kg | 1735 kg |
| Vehicle Length | 4970 mm | 4470 mm |
| Vehicle Width | 1880 mm | 1810 mm |
| Vehicle Height | 1320 mm | 1320 mm |
| Wheelbase Size | 2750 mm | 2360 mm |
| Fuel Tank Capacity | 85 L | 64 L |
