1999 Aston Martin DB7 vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Aston Martin DB7. In addition, the cost of maintenance, including insurance, on 1999 Aston Martin DB7 would be higher. At 5,935 cc (12 cylinders), 1999 Aston Martin DB7 is equipped with a bigger engine. In terms of performance, 1999 Aston Martin DB7 (420 HP @ 6000 RPM) has 213 more horse power than 2003 Opel Signum. (207 HP @ 6200 RPM). In normal driving conditions, 1999 Aston Martin DB7 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Aston Martin DB7 weights approximately 212 kg more than 2003 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Aston Martin DB7 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 1999 Aston Martin DB7. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 1999 Aston Martin DB7 (542 Nm @ 5000 RPM) has 242 more torque (in Nm) than 2003 Opel Signum. (300 Nm @ 4000 RPM). This means 1999 Aston Martin DB7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 1999 Aston Martin DB7 | 2003 Opel Signum | |
| Make | Aston Martin | Opel |
| Model | DB7 | Signum |
| Year Released | 1999 | 2003 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 3173 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 420 HP | 207 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 542 Nm | 300 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Engine Bore Size | 89.1 mm | 87.5 mm |
| Engine Stroke Size | 79.5 mm | 88 mm |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Acceleration 0-100mph | 5.1 seconds | 8.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1825 kg | 1613 kg |
| Vehicle Length | 4670 mm | 4640 mm |
| Vehicle Width | 1840 mm | 1800 mm |
| Vehicle Height | 1240 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2840 mm |
| Fuel Tank Capacity | 89 L | 60 L |
