2008 Aston Martin DB9 vs. 2005 Opel Signum
To start off, 2008 Aston Martin DB9 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 5,934 cc (12 cylinders), 2008 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2008 Aston Martin DB9 (444 HP @ 6000 RPM) has 320 more horse power than 2005 Opel Signum. (124 HP @ 3250 RPM). In normal driving conditions, 2008 Aston Martin DB9 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 Aston Martin DB9 weights approximately 280 kg more than 2005 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Aston Martin DB9 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2008 Aston Martin DB9. However, in wet, icy, snow, or gravel driving conditions, 2005 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, 2008 Aston Martin DB9 (570 Nm @ 5000 RPM) has 290 more torque (in Nm) than 2005 Opel Signum. (280 Nm @ 1500 RPM). This means 2008 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum. 2005 Opel Signum has automatic transmission and 2008 Aston Martin DB9 has manual transmission. 2008 Aston Martin DB9 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Aston Martin DB9 | 2005 Opel Signum | |
| Make | Aston Martin | Opel |
| Model | DB9 | Signum |
| Year Released | 2008 | 2005 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5934 cc | 2171 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 124 HP |
| Engine RPM | 6000 RPM | 3250 RPM |
| Torque | 570 Nm | 280 Nm |
| Torque RPM | 5000 RPM | 1500 RPM |
| Engine Bore Size | 89 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 98 mm |
| Engine Compression Ratio | 10.3:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 264 km/hour | 201 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 11.2 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1890 kg | 1610 kg |
| Vehicle Length | 4720 mm | 4640 mm |
| Vehicle Width | 1880 mm | 1800 mm |
| Vehicle Height | 1270 mm | 1470 mm |
| Wheelbase Size | 2750 mm | 2710 mm |
| Fuel Consumption Overall | 17.4 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 78 L | 60 L |
