1975 Alfa Romeo Spider vs. 1991 Opel Astra
To start off, 1991 Opel Astra is newer by 16 year(s). Which means there will be less support and parts availability for 1975 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1975 Alfa Romeo Spider would be higher. At 1,998 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 1975 Alfa Romeo Spider (132 HP @ 5400 RPM) has 17 more horse power than 1991 Opel Astra. (115 HP @ 5200 RPM). In normal driving conditions, 1975 Alfa Romeo Spider should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Astra weights approximately 10 kg more than 1975 Alfa Romeo Spider.
Because 1975 Alfa Romeo Spider is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1975 Alfa Romeo Spider. However, in wet, icy, snow, or gravel driving conditions, 1991 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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 Alfa Romeo Spider (181 Nm @ 4000 RPM) has 12 more torque (in Nm) than 1991 Opel Astra. (169 Nm @ 2600 RPM). This means 1975 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1975 Alfa Romeo Spider | 1991 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | Spider | Astra |
| Year Released | 1975 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 132 HP | 115 HP |
| Engine RPM | 5400 RPM | 5200 RPM |
| Torque | 181 Nm | 169 Nm |
| Torque RPM | 4000 RPM | 2600 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 88.5 mm | 86 mm |
| Engine Compression Ratio | 9.0:1 | 9.2:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1040 kg | 1050 kg |
| Vehicle Length | 4130 mm | 4090 mm |
| Vehicle Width | 1640 mm | 1690 mm |
| Vehicle Height | 1300 mm | 1420 mm |
| Wheelbase Size | 2260 mm | 2650 mm |
