1991 Opel Astra vs. 1975 Saab 99
To start off, 1991 Opel Astra is newer by 16 year(s). Which means there will be less support and parts availability for 1975 Saab 99. In addition, the cost of maintenance, including insurance, on 1975 Saab 99 would be higher. At 1,985 cc (4 cylinders), 1975 Saab 99 is equipped with a bigger engine. In terms of performance, both vehicles can yield 100 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 1975 Saab 99 weights approximately 85 kg more than 1991 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, 1975 Saab 99 (162 Nm @ 3500 RPM) has 27 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 1975 Saab 99 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Opel Astra | 1975 Saab 99 | |
| Make | Opel | Saab |
| Model | Astra | 99 |
| Year Released | 1991 | 1975 |
| 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 | 100 HP |
| Engine RPM | 5600 RPM | 5200 RPM |
| Torque | 135 Nm | 162 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 79 mm | 90.1 mm |
| Engine Stroke Size | 81.5 mm | 78 mm |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1095 kg | 1180 kg |
| Vehicle Length | 4280 mm | 4540 mm |
| Vehicle Width | 1690 mm | 1700 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2640 mm | 2480 mm |
