2008 Opel Signum vs. 1991 Opel Astra
To start off, 2008 Opel Signum is newer by 17 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 3,175 cc (6 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (208 HP @ 6200 RPM) has 149 more horse power than 1991 Opel Astra. (59 HP @ 5200 RPM). In normal driving conditions, 2008 Opel Signum should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 635 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, 2008 Opel Signum (300 Nm @ 4000 RPM) has 196 more torque (in Nm) than 1991 Opel Astra. (104 Nm @ 2800 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2008 Opel Signum | 1991 Opel Astra | |
| Make | Opel | Opel |
| Model | Signum | Astra |
| Year Released | 2008 | 1991 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3175 cc | 1389 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 208 HP | 59 HP |
| Engine RPM | 6200 RPM | 5200 RPM |
| Torque | 300 Nm | 104 Nm |
| Torque RPM | 4000 RPM | 2800 RPM |
| Engine Bore Size | 87.5 mm | 77.6 mm |
| Engine Stroke Size | 88 mm | 73.4 mm |
| Top Speed | 237 km/hour | 155 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1610 kg | 975 kg |
| Vehicle Length | 4640 mm | 4280 mm |
| Vehicle Width | 1800 mm | 1690 mm |
| Vehicle Height | 1470 mm | 1480 mm |
| Wheelbase Size | 2840 mm | 2530 mm |
