2006 Aston Martin DB9 vs. 2009 BMW 318
To start off, 2009 BMW 318 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2006 Aston Martin DB9 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 309 more horse power than 2009 BMW 318. (141 HP @ 4000 RPM). In normal driving conditions, 2006 Aston Martin DB9 should accelerate faster than 2009 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2006 Aston Martin DB9 weights approximately 205 kg more than 2009 BMW 318. 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, 2006 Aston Martin DB9 (570 Nm @ 5000 RPM) has 270 more torque (in Nm) than 2009 BMW 318. (300 Nm @ 2500 RPM). This means 2006 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 318.
Compare all specifications:
| 2006 Aston Martin DB9 | 2009 BMW 318 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 318 |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5932 cc | 1995 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 141 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 570 Nm | 300 Nm |
| Torque RPM | 5000 RPM | 2500 RPM |
| Engine Compression Ratio | 10.3:1 | 16.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 5.1 seconds | 9.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1710 kg | 1505 kg |
| Vehicle Length | 4720 mm | 4530 mm |
| Vehicle Width | 1880 mm | 1820 mm |
| Vehicle Height | 1320 mm | 1430 mm |
| Wheelbase Size | 2750 mm | 2770 mm |
| Fuel Consumption Overall | 15.7 L/100km | 5.6 L/100km |
| Fuel Tank Capacity | 83 L | 61 L |
