2005 BMW 325 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 325. In addition, the cost of maintenance, including insurance, on 2005 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 286 more horse power than 2005 BMW 325. (184 HP @ 7400 RPM) In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2005 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2009 Aston Martin DB9 weights approximately 375 kg more than 2005 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, 2009 Aston Martin DB9 (600 Nm) has 363 more torque (in Nm) than 2005 BMW 325. (237 Nm). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 325.
Compare all specifications:
| 2005 BMW 325 | 2009 Aston Martin DB9 | |
| Make | BMW | Aston Martin |
| Model | 325 | DB9 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 5935 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 184 HP | 470 HP |
| Engine RPM | 7400 RPM | 6000 RPM |
| Torque | 237 Nm | 600 Nm |
| Engine Bore Size | 84 mm | 89 mm |
| Engine Stroke Size | 75 mm | 79.5 mm |
| Engine Compression Ratio | 10.5:1 | 10.9:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1460 kg | 1835 kg |
| Vehicle Length | 4480 mm | 4720 mm |
| Vehicle Width | 1750 mm | 1880 mm |
| Vehicle Height | 1420 mm | 1280 mm |
| Wheelbase Size | 2730 mm | 2750 mm |
| Fuel Consumption | 8.1 L/100km | 12.4 L/100km |
| Fuel Consumption City | 11.8 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 16.4 L/100km |
| Fuel Tank Capacity | 63 L | 78 L |
