2004 Alfa Romeo 156 vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 156 would be higher. At 1,910 cc (4 cylinders), 2004 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (148 HP @ 4000 RPM) has 49 more horse power than 2006 Opel Astra. (99 HP @ 4400 RPM). In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 132 kg more than 2006 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Alfa Romeo 156 (300 Nm @ 2000 RPM) has 60 more torque (in Nm) than 2006 Opel Astra. (240 Nm @ 2300 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2004 Alfa Romeo 156 | 2006 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Astra |
| Year Released | 2004 | 2006 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1686 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 99 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 300 Nm | 240 Nm |
| Torque RPM | 2000 RPM | 2300 RPM |
| Engine Bore Size | 82 mm | 79 mm |
| Engine Stroke Size | 90.4 mm | 86 mm |
| Engine Compression Ratio | 18.5:1 | 18.4:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 200 km/hour | 180 km/hour |
| Acceleration 0-100mph | 10.5 seconds | 12.5 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1525 kg | 1393 kg |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1460 mm | 1510 mm |
| Wheelbase Size | 2600 mm | 2710 mm |
| Fuel Consumption Overall | 6.8 L/100km | 5 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
