2007 Aston Martin DB9 vs. 2004 BMW 525
To start off, 2007 Aston Martin DB9 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW 525. In addition, the cost of maintenance, including insurance, on 2004 BMW 525 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 262 more horse power than 2004 BMW 525. (189 HP @ 4000 RPM). In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2004 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 71 kg more than 2004 BMW 525. 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 170 more torque (in Nm) than 2004 BMW 525. (400 Nm @ 2000 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 525. 2004 BMW 525 has automatic transmission and 2007 Aston Martin DB9 has manual transmission. 2007 Aston Martin DB9 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW 525 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Aston Martin DB9 | 2004 BMW 525 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 525 |
| Year Released | 2007 | 2004 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 2497 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 451 HP | 189 HP |
| Engine RPM | 5750 RPM | 4000 RPM |
| Torque | 570 Nm | 400 Nm |
| Torque RPM | 5000 RPM | 2000 RPM |
| Engine Bore Size | 89 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 75.1 mm |
| Engine Compression Ratio | 10.3:1 | 17.0:1 |
| Top Speed | 300 km/hour | 222 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 8.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1835 kg | 1764 kg |
| Vehicle Length | 4720 mm | 4850 mm |
| Vehicle Width | 1880 mm | 1850 mm |
| Vehicle Height | 1280 mm | 1500 mm |
| Wheelbase Size | 2750 mm | 2890 mm |
| Fuel Consumption Highway | 12.4 L/100km | 6.5 L/100km |
| Fuel Consumption City | 19.6 L/100km | 10.9 L/100km |
| Fuel Consumption Overall | 17.8 L/100km | 8 L/100km |
| Fuel Tank Capacity | 78 L | 70 L |
