2006 Opel Astra vs. 2003 Vauxhall Signum
To start off, 2006 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Vauxhall Signum. In addition, the cost of maintenance, including insurance, on 2003 Vauxhall Signum would be higher. At 1,796 cc (4 cylinders), 2003 Vauxhall Signum is equipped with a bigger engine. In terms of performance, 2003 Vauxhall Signum (120 HP @ 6000 RPM) has 31 more horse power than 2006 Opel Astra. (89 HP @ 5600 RPM) In normal driving conditions, 2003 Vauxhall Signum should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Vauxhall Signum weights approximately 115 kg more than 2006 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 Vauxhall Signum (167 Nm @ 3800 RPM) has 42 more torque (in Nm) than 2006 Opel Astra. (125 Nm @ 4000 RPM). This means 2003 Vauxhall Signum will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2006 Opel Astra | 2003 Vauxhall Signum | |
| Make | Opel | Vauxhall |
| Model | Astra | Signum |
| Year Released | 2006 | 2003 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1364 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 | 5600 RPM | 6000 RPM |
| Torque | 125 Nm | 167 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1280 kg | 1395 kg |
| Vehicle Length | 4520 mm | 4640 mm |
| Vehicle Width | 2000 mm | 1800 mm |
| Vehicle Height | 1510 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2840 mm |
