2005 Opel Astra vs. 2005 Opel Signum
To start off, both 2005 Opel Astra and 2005 Opel Signum were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,172 cc (4 cylinders), 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (149 HP @ 5800 RPM) has 29 more horse power than 2005 Opel Signum. (120 HP @ 6000 RPM). In normal driving conditions, 2005 Opel Astra should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 89 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, 2005 Opel Astra (203 Nm @ 4000 RPM) has 38 more torque (in Nm) than 2005 Opel Signum. (165 Nm @ 3800 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum.
Compare all specifications:
| 2005 Opel Astra | 2005 Opel Signum | |
| Make | Opel | Opel |
| Model | Astra | Signum |
| Year Released | 2005 | 2005 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2172 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 149 HP | 120 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 203 Nm | 165 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 80.5 mm |
| Engine Stroke Size | 94.6 mm | 88.2 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 216 km/hour | 197 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1393 kg | 1482 kg |
| Vehicle Length | 4270 mm | 4640 mm |
| Vehicle Width | 1720 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2840 mm |
| Fuel Consumption Overall | 8.7 L/100km | 7.9 L/100km |
| Fuel Tank Capacity | 52 L | 60 L |
