2004 Opel Signum vs. 2004 Opel Astra
To start off, both 2004 Opel Signum and 2004 Opel Astra were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,998 cc (4 cylinders), 2004 Opel Astra is equipped with a bigger engine. In terms of performance, 2004 Opel Astra (197 HP @ 5400 RPM) has 74 more horse power than 2004 Opel Signum. (123 HP @ 6000 RPM) In normal driving conditions, 2004 Opel Astra should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 55 kg more than 2004 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, 2004 Opel Astra (262 Nm @ 4200 RPM) has 95 more torque (in Nm) than 2004 Opel Signum. (167 Nm @ 3800 RPM). This means 2004 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2004 Opel Signum | 2004 Opel Astra | |
| Make | Opel | Opel |
| Model | Signum | Astra |
| Year Released | 2004 | 2004 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 197 HP |
| Engine RPM | 6000 RPM | 5400 RPM |
| Torque | 167 Nm | 262 Nm |
| Torque RPM | 3800 RPM | 4200 RPM |
| Engine Bore Size | 80.5 mm | 86.1 mm |
| Engine Stroke Size | 88.2 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 8.8:1 |
| Acceleration 0-100mph | 12.2 seconds | 8.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1480 kg | 1425 kg |
| Vehicle Length | 4640 mm | 4520 mm |
| Vehicle Width | 1800 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2640 mm | 2640 mm |
| Fuel Consumption Overall | 8.1 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
