1990 Alfa Romeo 33 vs. 1991 Opel Astra
To start off, 1991 Opel Astra is newer by 1 year(s). Which means there will be less support and parts availability for 1990 Alfa Romeo 33. In addition, the cost of maintenance, including insurance, on 1990 Alfa Romeo 33 would be higher. At 1,686 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 1990 Alfa Romeo 33 (104 HP @ 6000 RPM) has 22 more horse power than 1991 Opel Astra. (82 HP @ 4400 RPM). In normal driving conditions, 1990 Alfa Romeo 33 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Astra weights approximately 160 kg more than 1990 Alfa Romeo 33.
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, 1991 Opel Astra (168 Nm @ 2400 RPM) has 32 more torque (in Nm) than 1990 Alfa Romeo 33. (136 Nm @ 4900 RPM). This means 1991 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1990 Alfa Romeo 33.
Compare all specifications:
| 1990 Alfa Romeo 33 | 1991 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 33 | Astra |
| Year Released | 1990 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1490 cc | 1686 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 82 HP |
| Engine RPM | 6000 RPM | 4400 RPM |
| Torque | 136 Nm | 168 Nm |
| Torque RPM | 4900 RPM | 2400 RPM |
| Engine Compression Ratio | 9.0:1 | 22.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 970 kg | 1130 kg |
| Vehicle Length | 4080 mm | 4060 mm |
| Vehicle Width | 1620 mm | 1690 mm |
| Vehicle Height | 1360 mm | 1430 mm |
| Wheelbase Size | 2480 mm | 2640 mm |
