2009 Alfa Romeo 159 vs. 2006 Alfa Romeo 156
To start off, 2009 Alfa Romeo 159 is newer by 3 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 2,492 cc (6 cylinders), 2006 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 156 (189 HP @ 6300 RPM) has 31 more horse power than 2009 Alfa Romeo 159. (158 HP @ 6500 RPM) In normal driving conditions, 2006 Alfa Romeo 156 should accelerate faster than 2009 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 156 weights approximately 30 kg more than 2009 Alfa Romeo 159. 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, 2006 Alfa Romeo 156 (218 Nm @ 5000 RPM) has 28 more torque (in Nm) than 2009 Alfa Romeo 159. (190 Nm @ 4500 RPM). This means 2006 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2009 Alfa Romeo 159.
Compare all specifications:
| 2009 Alfa Romeo 159 | 2006 Alfa Romeo 156 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 159 | 156 |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1859 cc | 2492 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 189 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 190 Nm | 218 Nm |
| Torque RPM | 4500 RPM | 5000 RPM |
| Engine Bore Size | 86 mm | 88 mm |
| Engine Stroke Size | 80 mm | 68.3 mm |
| Engine Compression Ratio | 11.3:1 | 10.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 212 km/hour | 230 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 7.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1555 kg | 1585 kg |
| Vehicle Length | 4670 mm | 4440 mm |
| Vehicle Width | 1830 mm | 1750 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2710 mm | 2600 mm |
| Fuel Consumption Overall | 8.9 L/100km | 12 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
