2009 Aston Martin DB9 vs. 2007 BMW X5
To start off, 2009 Aston Martin DB9 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW X5. In addition, the cost of maintenance, including insurance, on 2007 BMW X5 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 (464 HP @ 6000 RPM) has 236 more horse power than 2007 BMW X5. (228 HP @ 5900 RPM). In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2007 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 310 kg more than 2009 Aston Martin DB9.
Because 2007 BMW X5 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, 2007 BMW X5 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 (443 Nm @ 5000 RPM) has 143 more torque (in Nm) than 2007 BMW X5. (300 Nm @ 3500 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X5.
Compare all specifications:
| 2009 Aston Martin DB9 | 2007 BMW X5 | |
| Make | Aston Martin | BMW |
| Model | DB9 | X5 |
| Year Released | 2009 | 2007 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 2979 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 464 HP | 228 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 443 Nm | 300 Nm |
| Torque RPM | 5000 RPM | 3500 RPM |
| Engine Bore Size | 89.1 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 89.6 mm |
| Engine Compression Ratio | 10.9:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1760 kg | 2070 kg |
| Vehicle Length | 4710 mm | 4670 mm |
| Vehicle Width | 1880 mm | 1880 mm |
| Vehicle Height | 1320 mm | 1720 mm |
| Wheelbase Size | 2750 mm | 2830 mm |
| Fuel Consumption Highway | 13.9 L/100km | 11.2 L/100km |
| Fuel Consumption Overall | 18.1 L/100km | 12.7 L/100km |
| Fuel Tank Capacity | 85 L | 93 L |
