1991 Opel Astra vs. 2001 Opel Signum
To start off, 2001 Opel Signum is newer by 10 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 2,958 cc (6 cylinders), 2001 Opel Signum is equipped with a bigger engine. In terms of performance, 2001 Opel Signum (175 HP @ 4000 RPM) has 119 more horse power than 1991 Opel Astra. (56 HP @ 4600 RPM) In normal driving conditions, 2001 Opel Signum should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2001 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, 2001 Opel Signum (370 Nm @ 1900 RPM) has 265 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 RPM). This means 2001 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 | 2001 Opel Signum | |
| Make | Opel | Opel |
| Model | Astra | Signum |
| Year Released | 1991 | 2001 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1698 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 56 HP | 175 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 105 Nm | 370 Nm |
| Torque RPM | 2400 RPM | 1900 RPM |
| Engine Bore Size | 82.5 mm | 87.5 mm |
| Engine Stroke Size | 79.5 mm | 82 mm |
| Engine Compression Ratio | 23.0:1 | 18.5:1 |
| Top Speed | 150 km/hour | 221 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1035 kg | 1670 kg |
| Vehicle Length | 4250 mm | 4640 mm |
| Vehicle Width | 1690 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2530 mm | 2710 mm |
| Fuel Tank Capacity | 52 L | 60 L |
