2005 Opel Astra vs. 1999 Opel Signum
To start off, 2005 Opel Astra is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,172 cc (4 cylinders), 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (145 HP @ 6000 RPM) has 46 more horse power than 1999 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2005 Opel Astra should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 380 kg more than 2005 Opel Astra.
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, 1999 Opel Signum (240 Nm @ 1500 RPM) has 37 more torque (in Nm) than 2005 Opel Astra. (203 Nm @ 4000 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2005 Opel Astra | 1999 Opel Signum | |
| Make | Opel | Opel |
| Model | Astra | Signum |
| Year Released | 2005 | 1999 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2172 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 145 HP | 99 HP |
| Engine RPM | 6000 RPM | 3120 RPM |
| Torque | 203 Nm | 240 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Engine Compression Ratio | 10.0:1 | 18.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1215 kg | 1595 kg |
| Wheelbase Size | 2740 mm | 2840 mm |
| Fuel Tank Capacity | 52 L | 60 L |
