2003 Opel Signum vs. 2012 Opel Astra
To start off, 2012 Opel Astra is newer by 9 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 2,171 cc (4 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2012 Opel Astra (197 HP @ 5600 RPM) has 45 more horse power than 2003 Opel Signum. (152 HP @ 5600 RPM) In normal driving conditions, 2012 Opel Astra should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 180 kg more than 2012 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, 2012 Opel Astra (262 Nm @ 4200 RPM) has 42 more torque (in Nm) than 2003 Opel Signum. (220 Nm @ 3800 RPM). This means 2012 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum. 2003 Opel Signum has automatic transmission and 2012 Opel Astra has manual transmission. 2012 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Signum | 2012 Opel Astra | |
| Make | Opel | Opel |
| Model | Signum | Astra |
| Year Released | 2003 | 2012 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 152 HP | 197 HP |
| Engine RPM | 5600 RPM | 5600 RPM |
| Torque | 220 Nm | 262 Nm |
| Torque RPM | 3800 RPM | 4200 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 |
| Acceleration 0-100mph | 11 seconds | 8.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1565 kg | 1385 kg |
| Vehicle Length | 4640 mm | 4260 mm |
| Vehicle Width | 1800 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2620 mm |
| Fuel Consumption Overall | 9.1 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
