2004 Porsche 911 vs. 2011 Aston Martin DB9
To start off, 2011 Aston Martin DB9 is newer by 7 year(s). Which means there will be less support and parts availability for 2004 Porsche 911. In addition, the cost of maintenance, including insurance, on 2004 Porsche 911 would be higher. At 5,900 cc (12 cylinders), 2011 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2011 Aston Martin DB9 (470 HP @ 6000 RPM) has 120 more horse power than 2004 Porsche 911. (350 HP @ 6600 RPM) In normal driving conditions, 2011 Aston Martin DB9 should accelerate faster than 2004 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2011 Aston Martin DB9 weights approximately 265 kg more than 2004 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 Aston Martin DB9 (600 Nm @ 5000 RPM) has 200 more torque (in Nm) than 2004 Porsche 911. (400 Nm @ 4600 RPM). This means 2011 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2004 Porsche 911.
Compare all specifications:
| 2004 Porsche 911 | 2011 Aston Martin DB9 | |
| Make | Porsche | Aston Martin |
| Model | 911 | DB9 |
| Year Released | 2004 | 2011 |
| Body Type | Coupe | Coupe |
| Engine Position | Rear | Front |
| Engine Size | 3824 cc | 5900 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 470 HP |
| Engine RPM | 6600 RPM | 6000 RPM |
| Torque | 400 Nm | 600 Nm |
| Torque RPM | 4600 RPM | 5000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1495 kg | 1760 kg |
| Vehicle Length | 4430 mm | 4712 mm |
| Vehicle Width | 1820 mm | 1880 mm |
| Vehicle Height | 1320 mm | 1300 mm |
| Wheelbase Size | 2360 mm | 2741 mm |
| Fuel Consumption | 8.4 L/100km | 13.8 L/100km |
| Fuel Consumption City | 17.1 L/100km | 21.4 L/100km |
| Fuel Tank Capacity | 64 L | 80 L |
