2005 BMW 730 vs. 2009 Aston Martin DB9
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 730. In addition, the cost of maintenance, including insurance, on 2005 BMW 730 would be higher. At 5,935 cc (12 cylinders), 2009 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2009 Aston Martin DB9 (470 HP @ 6000 RPM) has 245 more horse power than 2005 BMW 730. (225 HP @ 4000 RPM) In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2005 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 730 weights approximately 140 kg more than 2009 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, 2009 Aston Martin DB9 (600 Nm @ 5000 RPM) has 100 more torque (in Nm) than 2005 BMW 730. (500 Nm @ 2000 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 730.
Compare all specifications:
| 2005 BMW 730 | 2009 Aston Martin DB9 | |
| Make | BMW | Aston Martin |
| Model | 730 | DB9 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 5935 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 470 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 500 Nm | 600 Nm |
| Torque RPM | 2000 RPM | 5000 RPM |
| Engine Bore Size | 84.1 mm | 89 mm |
| Engine Stroke Size | 90 mm | 79.5 mm |
| Engine Compression Ratio | 18.0:1 | 10.9:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 8 seconds | 4.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1975 kg | 1835 kg |
| Vehicle Length | 5050 mm | 4720 mm |
| Vehicle Width | 1910 mm | 1880 mm |
| Vehicle Height | 1500 mm | 1280 mm |
| Wheelbase Size | 2890 mm | 2750 mm |
| Fuel Consumption | 6.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 11.3 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 8.2 L/100km | 16.4 L/100km |
| Fuel Tank Capacity | 88 L | 78 L |
