2005 Alfa Romeo 156 vs. 2006 Alfa Romeo 166
To start off, 2006 Alfa Romeo 166 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 3,179 cc (6 cylinders), 2006 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 166 (236 HP @ 6200 RPM) has 88 more horse power than 2005 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 2006 Alfa Romeo 166 should accelerate faster than 2005 Alfa Romeo 156.
Because 2005 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Alfa Romeo 156 (310 Nm @ 2000 RPM) has 21 more torque (in Nm) than 2006 Alfa Romeo 166. (289 Nm @ 4800 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 166.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2006 Alfa Romeo 166 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 156 | 166 |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 3179 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 236 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 310 Nm | 289 Nm |
| Torque RPM | 2000 RPM | 4800 RPM |
| Engine Bore Size | 82 mm | 93 mm |
| Engine Stroke Size | 90.4 mm | 78 mm |
| Engine Compression Ratio | 18.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 200 km/hour | 245 km/hour |
| Acceleration 0-100mph | 10.5 seconds | 7.4 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1585 kg |
| Vehicle Width | 1750 mm | 1810 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2600 mm | 2710 mm |
| Fuel Consumption Overall | 6.8 L/100km | 12.7 L/100km |
| Fuel Tank Capacity | 50 L | 69 L |
