2007 Alfa Romeo 156 vs. 2005 Opel Astra
To start off, 2007 Alfa Romeo 156 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 1,970 cc (4 cylinders), 2007 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo 156 (148 HP @ 6300 RPM) has 59 more horse power than 2005 Opel Astra. (89 HP @ 4000 RPM). In normal driving conditions, 2007 Alfa Romeo 156 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 156 weights approximately 20 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2005 Opel Astra (201 Nm @ 1750 RPM) has 19 more torque (in Nm) than 2007 Alfa Romeo 156. (182 Nm @ 3800 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2007 Alfa Romeo 156.
Compare all specifications:
| 2007 Alfa Romeo 156 | 2005 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Astra |
| Year Released | 2007 | 2005 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1970 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 | 89 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 182 Nm | 201 Nm |
| Torque RPM | 3800 RPM | 1750 RPM |
| Engine Bore Size | 83 mm | 79 mm |
| Engine Stroke Size | 91 mm | 86 mm |
| Top Speed | 214 km/hour | 182 km/hour |
| Acceleration 0-100mph | 8.8 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1335 kg | 1315 kg |
| Vehicle Length | 4450 mm | 4300 mm |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1440 mm | 1440 mm |
| Wheelbase Size | 2600 mm | 2640 mm |
| Fuel Consumption Overall | 8.7 L/100km | 5 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
