2006 Opel Signum vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Opel Signum. In addition, the cost of maintenance, including insurance, on 2006 Opel Signum would be higher. Both 2006 Opel Signum and 2007 Opel Astra are equipped with a 1,796 cc engine. In terms of performance, 2007 Opel Astra (123 HP @ 5600 RPM) has 3 more horse power than 2006 Opel Signum. (120 HP @ 6000 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 202 kg more than 2007 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, 2007 Opel Astra (170 Nm @ 3800 RPM) has 2 more torque (in Nm) than 2006 Opel Signum. (168 Nm @ 3800 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum.
Compare all specifications:
| 2006 Opel Signum | 2007 Opel Astra | |
| Make | Opel | Opel |
| Model | Signum | Astra |
| Year Released | 2006 | 2007 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 120 HP | 123 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 168 Nm | 170 Nm |
| Torque RPM | 3800 RPM | 3800 RPM |
| Engine Bore Size | 80.5 mm | 80.5 mm |
| Engine Stroke Size | 88.2 mm | 88.2 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 197 km/hour | 200 km/hour |
| Acceleration 0-100mph | 12.2 seconds | 10.7 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1480 kg | 1278 kg |
| Vehicle Length | 4640 mm | 4300 mm |
| Vehicle Width | 1800 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2840 mm | 2620 mm |
| Fuel Consumption Overall | 7.9 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
