2005 Alfa Romeo 156 vs. 2001 Opel Astra
To start off, 2005 Alfa Romeo 156 is newer by 4 year(s). Which means there will be less support and parts availability for 2001 Opel Astra. In addition, the cost of maintenance, including insurance, on 2001 Opel Astra would be higher. At 2,171 cc (4 cylinders), 2001 Opel Astra is equipped with a bigger engine. In terms of performance, 2001 Opel Astra (152 HP @ 5400 RPM) has 4 more horse power than 2005 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 2001 Opel Astra should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 195 kg more than 2001 Opel Astra.
Because 2005 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 2001 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2005 Alfa Romeo 156 will offer significantly more control. 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, 2005 Alfa Romeo 156 (310 Nm @ 2000 RPM) has 107 more torque (in Nm) than 2001 Opel Astra. (203 Nm @ 4000 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2001 Opel Astra.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2001 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Astra |
| Year Released | 2005 | 2001 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 152 HP |
| Engine RPM | 4000 RPM | 5400 RPM |
| Torque | 310 Nm | 203 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 90.4 mm | 94.6 mm |
| Engine Compression Ratio | 18.5:1 | 9.6:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1585 kg | 1390 kg |
| Vehicle Width | 1750 mm | 1720 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 2600 mm | 2620 mm |
| Fuel Tank Capacity | 50 L | 53 L |
