1991 Opel Astra vs. 1979 Saab 900
To start off, 1991 Opel Astra is newer by 12 year(s). Which means there will be less support and parts availability for 1979 Saab 900. In addition, the cost of maintenance, including insurance, on 1979 Saab 900 would be higher. At 1,985 cc (4 cylinders), 1979 Saab 900 is equipped with a bigger engine. In terms of performance, 1979 Saab 900 (143 HP @ 5000 RPM) has 43 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM) In normal driving conditions, 1979 Saab 900 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1979 Saab 900 weights approximately 155 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, 1979 Saab 900 (236 Nm @ 3000 RPM) has 101 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 1979 Saab 900 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Opel Astra | 1979 Saab 900 | |
| Make | Opel | Saab |
| Model | Astra | 900 |
| Year Released | 1991 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 1597 cc | 1985 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 143 HP |
| Engine RPM | 5600 RPM | 5000 RPM |
| Torque | 135 Nm | 236 Nm |
| Torque RPM | 3400 RPM | 3000 RPM |
| Engine Compression Ratio | 9.8:1 | 8.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1095 kg | 1250 kg |
| Vehicle Length | 4280 mm | 4750 mm |
| Vehicle Width | 1690 mm | 1700 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2640 mm | 2530 mm |
