2008 Opel Astra vs. 2003 Opel Signum
To start off, 2008 Opel Astra is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 1,796 cc (4 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (120 HP @ 6000 RPM) has 31 more horse power than 2008 Opel Astra. (89 HP @ 4000 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 2008 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 155 kg more than 2008 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, 2008 Opel Astra (200 Nm @ 1750 RPM) has 34 more torque (in Nm) than 2003 Opel Signum. (166 Nm @ 3800 RPM). This means 2008 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2008 Opel Astra | 2003 Opel Signum | |
| Make | Opel | Opel |
| Model | Astra | Signum |
| Year Released | 2008 | 2003 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1248 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 89 HP | 120 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 200 Nm | 166 Nm |
| Torque RPM | 1750 RPM | 3800 RPM |
| Engine Bore Size | 69.6 mm | 80.5 mm |
| Engine Stroke Size | 82 mm | 88.2 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 172 km/hour | 197 km/hour |
| Acceleration 0-100mph | 14.1 seconds | 12.2 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 | 1380 kg | 1535 kg |
| Vehicle Length | 4520 mm | 4640 mm |
| Vehicle Width | 1800 mm | 1800 mm |
| Vehicle Height | 1510 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2840 mm |
| Fuel Consumption Overall | 4.8 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 52 L | 60 L |
