2007 Aston Martin DB9 vs. 2007 BMW 325
To start off, both 2007 Aston Martin DB9 and 2007 BMW 325 were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,935 cc (12 cylinders), 2007 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2007 Aston Martin DB9 (450 HP @ 6000 RPM) has 235 more horse power than 2007 BMW 325. (215 HP @ 6500 RPM). In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2007 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 190 kg more than 2007 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 Aston Martin DB9 (570 Nm @ 5000 RPM) has 319 more torque (in Nm) than 2007 BMW 325. (251 Nm @ 2750 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 325.
Compare all specifications:
| 2007 Aston Martin DB9 | 2007 BMW 325 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 325 |
| Year Released | 2007 | 2007 |
| Body Type | Convertible | Sedan |
| 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 | 450 HP | 215 HP |
| Engine RPM | 6000 RPM | 6500 RPM |
| Torque | 570 Nm | 251 Nm |
| Torque RPM | 5000 RPM | 2750 RPM |
| Engine Bore Size | 89 mm | 78.8 mm |
| Engine Stroke Size | 79.5 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 300 km/hour | 245 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 7.7 seconds |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1710 kg | 1520 kg |
| Vehicle Length | 4720 mm | 4530 mm |
| Vehicle Width | 1890 mm | 1430 mm |
| Vehicle Height | 1320 mm | 1820 mm |
| Wheelbase Size | 2750 mm | 2770 mm |
| Fuel Consumption Overall | 15.7 L/100km | 9 L/100km |
| Fuel Tank Capacity | 80 L | 60 L |
