2007 Aston Martin DB9 vs. 2005 BMW 318
To start off, 2007 Aston Martin DB9 is newer by 2 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 5,935 cc (12 cylinders), 2007 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2007 Aston Martin DB9 (451 HP @ 5750 RPM) has 338 more horse power than 2005 BMW 318. (113 HP @ 4000 RPM). In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2005 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 280 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, 2007 Aston Martin DB9 (570 Nm @ 5000 RPM) has 290 more torque (in Nm) than 2005 BMW 318. (280 Nm @ 1750 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 318.
Compare all specifications:
| 2007 Aston Martin DB9 | 2005 BMW 318 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 318 |
| Year Released | 2007 | 2005 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 1995 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 451 HP | 113 HP |
| Engine RPM | 5750 RPM | 4000 RPM |
| Torque | 570 Nm | 280 Nm |
| Torque RPM | 5000 RPM | 1750 RPM |
| Engine Bore Size | 89 mm | 84.1 mm |
| Engine Stroke Size | 79.5 mm | 90 mm |
| Engine Compression Ratio | 10.3:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 4.9 seconds | 11 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1835 kg | 1555 kg |
| Vehicle Length | 4720 mm | 4480 mm |
| Vehicle Width | 1880 mm | 1750 mm |
| Vehicle Height | 1280 mm | 1420 mm |
| Wheelbase Size | 2750 mm | 2730 mm |
| Fuel Consumption Overall | 17.8 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 78 L | 63 L |
