1997 Alfa Romeo 155 vs. 1991 Opel Astra
To start off, 1997 Alfa Romeo 155 is newer by 6 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 2,499 cc (6 cylinders), 1997 Alfa Romeo 155 is equipped with a bigger engine. In terms of performance, 1997 Alfa Romeo 155 (493 HP @ 11700 RPM) has 437 more horse power than 1991 Opel Astra. (56 HP @ 4600 RPM). In normal driving conditions, 1997 Alfa Romeo 155 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1997 Alfa Romeo 155 weights approximately 5 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.
Let's talk about torque, 1997 Alfa Romeo 155 (300 Nm @ 9500 RPM) has 195 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 RPM). This means 1997 Alfa Romeo 155 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1997 Alfa Romeo 155 | 1991 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 155 | Astra |
| Year Released | 1997 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 1698 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 493 HP | 56 HP |
| Engine RPM | 11700 RPM | 4600 RPM |
| Torque | 300 Nm | 105 Nm |
| Torque RPM | 9500 RPM | 2400 RPM |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1040 kg | 1035 kg |
| Vehicle Width | 1750 mm | 1690 mm |
