2003 Opel Signum vs. 2002 Opel Astra
To start off, 2003 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2002 Opel Astra. In addition, the cost of maintenance, including insurance, on 2002 Opel Astra would be higher. At 1,998 cc (4 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (99 HP @ 3120 RPM) has 10 more horse power than 2002 Opel Astra. (89 HP @ 6000 RPM). In normal driving conditions, 2003 Opel Signum should accelerate faster than 2002 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 510 kg more than 2002 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2003 Opel Signum (230 Nm @ 1500 RPM) has 103 more torque (in Nm) than 2002 Opel Astra. (127 Nm @ 4000 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Astra.
Compare all specifications:
| 2003 Opel Signum | 2002 Opel Astra | |
| Make | Opel | Opel |
| Model | Signum | Astra |
| Year Released | 2003 | 2002 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1387 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 99 HP | 89 HP |
| Engine RPM | 3120 RPM | 6000 RPM |
| Torque | 230 Nm | 127 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 77.6 mm |
| Engine Stroke Size | 90 mm | 73.4 mm |
| Engine Compression Ratio | 18.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1620 kg | 1110 kg |
| Vehicle Length | 4640 mm | 4260 mm |
| Vehicle Width | 1800 mm | 1720 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2610 mm |
| Fuel Tank Capacity | 60 L | 52 L |
