2008 Aston Martin DB9 vs. 2009 Porsche 911
To start off, 2009 Porsche 911 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 5,935 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 35 more horse power than 2009 Porsche 911. (409 HP @ 7600 RPM). In normal driving conditions, 2008 Aston Martin DB9 should accelerate faster than 2009 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2008 Aston Martin DB9 weights approximately 410 kg more than 2009 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, 2008 Aston Martin DB9 (571 Nm @ 5000 RPM) has 166 more torque (in Nm) than 2009 Porsche 911. (405 Nm @ 5500 RPM). This means 2008 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche 911.
Compare all specifications:
| 2008 Aston Martin DB9 | 2009 Porsche 911 | |
| Make | Aston Martin | Porsche |
| Model | DB9 | 911 |
| Year Released | 2008 | 2009 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5935 cc | 3599 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 444 HP | 409 HP |
| Engine RPM | 6000 RPM | 7600 RPM |
| Torque | 571 Nm | 405 Nm |
| Torque RPM | 5000 RPM | 5500 RPM |
| Engine Bore Size | 89 mm | 100 mm |
| Engine Stroke Size | 79.5 mm | 76.4 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 300 km/hour | 310 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 4.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1425 kg |
| Vehicle Length | 4720 mm | 4450 mm |
| Vehicle Width | 1880 mm | 1290 mm |
| Vehicle Height | 1280 mm | 1810 mm |
| Wheelbase Size | 2750 mm | 2360 mm |
| Fuel Consumption Highway | 12.4 L/100km | 10.7 L/100km |
| Fuel Consumption City | 19.6 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 16.5 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 78 L | 67 L |
