2009 Aston Martin DB9 vs. 2005 BMW 318
To start off, 2009 Aston Martin DB9 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 BMW 318. In addition, the cost of maintenance, including insurance, on 2005 BMW 318 would be higher. At 5,933 cc (12 cylinders), 2009 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2009 Aston Martin DB9 (510 HP @ 6500 RPM) has 369 more horse power than 2005 BMW 318. (141 HP @ 6000 RPM). In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2005 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2009 Aston Martin DB9 weights approximately 365 kg more than 2005 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, 2009 Aston Martin DB9 (570 Nm @ 5750 RPM) has 369 more torque (in Nm) than 2005 BMW 318. (201 Nm @ 3750 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 318. 2005 BMW 318 has automatic transmission and 2009 Aston Martin DB9 has manual transmission. 2009 Aston Martin DB9 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW 318 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Aston Martin DB9 | 2005 BMW 318 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 318 |
| Year Released | 2009 | 2005 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5933 cc | 1995 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 510 HP | 141 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 570 Nm | 201 Nm |
| Torque RPM | 5750 RPM | 3750 RPM |
| Engine Bore Size | 89 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 90 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 305 km/hour | 218 km/hour |
| Acceleration 0-100mph | 4.5 seconds | 9.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1760 kg | 1395 kg |
| Vehicle Length | 4730 mm | 4490 mm |
| Vehicle Width | 1910 mm | 1760 mm |
| Vehicle Height | 1290 mm | 1380 mm |
| Wheelbase Size | 2750 mm | 2740 mm |
| Fuel Consumption Overall | 16.3 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 78 L | 63 L |
