2008 Aston Martin DB9 vs. 2005 BMW 630
To start off, 2008 Aston Martin DB9 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW 630. In addition, the cost of maintenance, including insurance, on 2005 BMW 630 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 190 more horse power than 2005 BMW 630. (254 HP @ 6600 RPM). In normal driving conditions, 2008 Aston Martin DB9 should accelerate faster than 2005 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2008 Aston Martin DB9 weights approximately 71 kg more than 2005 BMW 630. 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 271 more torque (in Nm) than 2005 BMW 630. (300 Nm @ 2500 RPM). This means 2008 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 630.
Compare all specifications:
| 2008 Aston Martin DB9 | 2005 BMW 630 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 630 |
| Year Released | 2008 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 2999 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 254 HP |
| Engine RPM | 6000 RPM | 6600 RPM |
| Torque | 571 Nm | 300 Nm |
| Torque RPM | 5000 RPM | 2500 RPM |
| Engine Bore Size | 89 mm | 85 mm |
| Engine Stroke Size | 79.5 mm | 88 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 300 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 6.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1764 kg |
| Vehicle Length | 4720 mm | 4830 mm |
| Vehicle Width | 1880 mm | 1860 mm |
| Vehicle Height | 1280 mm | 1380 mm |
| Wheelbase Size | 2750 mm | 2670 mm |
| Fuel Consumption Overall | 16.5 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 78 L | 70 L |
