1991 Opel Astra vs. 2007 Opel Signum
To start off, 2007 Opel Signum is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,196 cc (4 cylinders), 2007 Opel Signum is equipped with a bigger engine. In terms of performance, 2007 Opel Signum (153 HP @ 5600 RPM) has 38 more horse power than 1991 Opel Astra. (115 HP @ 5200 RPM) In normal driving conditions, 2007 Opel Signum should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 485 kg more than 1991 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, 2007 Opel Signum (220 Nm @ 3800 RPM) has 51 more torque (in Nm) than 1991 Opel Astra. (169 Nm @ 2600 RPM). This means 2007 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Opel Astra | 2007 Opel Signum | |
| Make | Opel | Opel |
| Model | Astra | Signum |
| Year Released | 1991 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2196 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 115 HP | 153 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 169 Nm | 220 Nm |
| Torque RPM | 2600 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 86 mm |
| Engine Stroke Size | 86 mm | 94.6 mm |
| Engine Compression Ratio | 9.2:1 | 12.0:1 |
| Top Speed | 200 km/hour | 211 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 9.8 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 | 1050 kg | 1535 kg |
| Vehicle Length | 4090 mm | 4640 mm |
| Vehicle Width | 1690 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2650 mm | 2840 mm |
| Fuel Tank Capacity | 75 L | 60 L |
