2006 Alfa Romeo 156 vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2006 Alfa Romeo 156 would be higher. At 1,910 cc (4 cylinders), 2006 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 156 (114 HP @ 4000 RPM) has 10 more horse power than 2007 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2006 Alfa Romeo 156 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 207 kg more than 2006 Alfa Romeo 156.
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, 2006 Alfa Romeo 156 (275 Nm @ 2000 RPM) has 124 more torque (in Nm) than 2007 Opel Astra. (151 Nm @ 3900 RPM). This means 2006 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2006 Alfa Romeo 156 | 2007 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Astra |
| Year Released | 2006 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 114 HP | 104 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 275 Nm | 151 Nm |
| Torque RPM | 2000 RPM | 3900 RPM |
| Engine Bore Size | 82 mm | 79 mm |
| Engine Stroke Size | 90.4 mm | 81.5 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 191 km/hour | 186 km/hour |
| Acceleration 0-100mph | 10.3 seconds | 14.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1308 kg | 1515 kg |
| Vehicle Length | 4440 mm | 4480 mm |
| Vehicle Width | 1750 mm | 2030 mm |
| Vehicle Height | 1440 mm | 1840 mm |
| Wheelbase Size | 2600 mm | 2620 mm |
| Fuel Consumption Overall | 5.8 L/100km | 7 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
