2007 Alfa Romeo 156 vs. 2007 Opel Astra
To start off, both 2007 Alfa Romeo 156 and 2007 Opel Astra were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,387 cc (5 cylinders), 2007 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo 156 (174 HP @ 4000 RPM) has 69 more horse power than 2007 Opel Astra. (105 HP @ 6000 RPM). In normal driving conditions, 2007 Alfa Romeo 156 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 156 weights approximately 120 kg more than 2007 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, 2007 Alfa Romeo 156 (385 Nm @ 2000 RPM) has 235 more torque (in Nm) than 2007 Opel Astra. (150 Nm @ 3900 RPM). This means 2007 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2007 Alfa Romeo 156 | 2007 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Astra |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 1598 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 174 HP | 105 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 385 Nm | 150 Nm |
| Torque RPM | 2000 RPM | 3900 RPM |
| Engine Bore Size | 82 mm | 79 mm |
| Engine Stroke Size | 90.4 mm | 81.5 mm |
| Engine Compression Ratio | 18.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 225 km/hour | 187 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1385 kg | 1265 kg |
| Vehicle Length | 4440 mm | 4300 mm |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1440 mm | 1440 mm |
| Wheelbase Size | 2600 mm | 2620 mm |
| Fuel Consumption Overall | 6.6 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
