1997 Alfa Romeo 155 vs. 2004 Opel Astra
To start off, 2004 Opel Astra is newer by 7 year(s). Which means there will be less support and parts availability for 1997 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1997 Alfa Romeo 155 would be higher. At 1,686 cc (4 cylinders), 2004 Opel Astra is equipped with a bigger engine. In terms of performance, 1997 Alfa Romeo 155 (118 HP @ 6300 RPM) has 15 more horse power than 2004 Opel Astra. (103 HP @ 4400 RPM). In normal driving conditions, 1997 Alfa Romeo 155 should accelerate faster than 2004 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Astra weights approximately 145 kg more than 1997 Alfa Romeo 155.
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, 2004 Opel Astra (231 Nm @ 2300 RPM) has 87 more torque (in Nm) than 1997 Alfa Romeo 155. (144 Nm @ 4500 RPM). This means 2004 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1997 Alfa Romeo 155.
Compare all specifications:
| 1997 Alfa Romeo 155 | 2004 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 155 | Astra |
| Year Released | 1997 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1686 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 118 HP | 103 HP |
| Engine RPM | 6300 RPM | 4400 RPM |
| Torque | 144 Nm | 231 Nm |
| Torque RPM | 4500 RPM | 2300 RPM |
| Engine Bore Size | 82 mm | 79 mm |
| Engine Stroke Size | 75.7 mm | 86 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1270 kg | 1415 kg |
| Vehicle Length | 4450 mm | 4520 mm |
| Vehicle Width | 1710 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1510 mm |
