2004 BMW 645 vs. 2010 Aston Martin DB9
To start off, 2010 Aston Martin DB9 is newer by 6 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 5,900 cc (12 cylinders), 2010 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2010 Aston Martin DB9 (470 HP @ 6000 RPM) has 142 more horse power than 2004 BMW 645. (328 HP @ 6100 RPM) In normal driving conditions, 2010 Aston Martin DB9 should accelerate faster than 2004 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 55 kg more than 2010 Aston Martin DB9.
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, 2010 Aston Martin DB9 (600 Nm @ 5000 RPM) has 149 more torque (in Nm) than 2004 BMW 645. (451 Nm @ 3600 RPM). This means 2010 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 645.
Compare all specifications:
| 2004 BMW 645 | 2010 Aston Martin DB9 | |
| Make | BMW | Aston Martin |
| Model | 645 | DB9 |
| Year Released | 2004 | 2010 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5900 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 470 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 451 Nm | 600 Nm |
| Torque RPM | 3600 RPM | 5000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1815 kg | 1760 kg |
| Vehicle Length | 4830 mm | 4712 mm |
| Vehicle Width | 1860 mm | 1880 mm |
| Vehicle Height | 1380 mm | 1300 mm |
| Wheelbase Size | 2790 mm | 2741 mm |
| Fuel Tank Capacity | 70 L | 80 L |
