2009 Aston Martin DB9 vs. 2008 BMW 325
To start off, 2009 Aston Martin DB9 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW 325. In addition, the cost of maintenance, including insurance, on 2008 BMW 325 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 281 more horse power than 2008 BMW 325. (189 HP @ 6000 RPM). In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2008 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2009 Aston Martin DB9 weights approximately 315 kg more than 2008 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW 325 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2008 BMW 325 will offer significantly more control. 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 (601 Nm @ 5000 RPM) has 356 more torque (in Nm) than 2008 BMW 325. (245 Nm @ 3500 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 325. 2009 Aston Martin DB9 has automatic transmission and 2008 BMW 325 has manual transmission. 2008 BMW 325 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Aston Martin DB9 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Aston Martin DB9 | 2008 BMW 325 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 325 |
| Year Released | 2009 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 2494 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 470 HP | 189 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 601 Nm | 245 Nm |
| Torque RPM | 5000 RPM | 3500 RPM |
| Engine Bore Size | 89 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 75 mm |
| Engine Compression Ratio | 10.9:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 265 km/hour | 234 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 7.8 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1890 kg | 1575 kg |
| Vehicle Length | 4720 mm | 4480 mm |
| Vehicle Width | 1880 mm | 1750 mm |
| Vehicle Height | 1320 mm | 1440 mm |
| Wheelbase Size | 2750 mm | 2730 mm |
| Fuel Consumption Overall | 16.8 L/100km | 10 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
