2007 Opel Signum vs. 2007 Opel Astra
To start off, both 2007 Opel Signum and 2007 Opel Astra were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,196 cc (4 cylinders), 2007 Opel Signum is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (197 HP @ 5400 RPM) has 44 more horse power than 2007 Opel Signum. (153 HP @ 5600 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2007 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 150 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 (262 Nm @ 1950 RPM) has 42 more torque (in Nm) than 2007 Opel Signum. (220 Nm @ 3800 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Signum.
Compare all specifications:
| 2007 Opel Signum | 2007 Opel Astra | |
| Make | Opel | Opel |
| Model | Signum | Astra |
| Year Released | 2007 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2196 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 153 HP | 197 HP |
| Engine RPM | 5600 RPM | 5400 RPM |
| Torque | 220 Nm | 262 Nm |
| Torque RPM | 3800 RPM | 1950 RPM |
| Engine Bore Size | 86 mm | 86.1 mm |
| Engine Stroke Size | 94.6 mm | 86 mm |
| Engine Compression Ratio | 12.0:1 | 8.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 9.8 seconds | 7.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1535 kg | 1385 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 | 8.1 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
