2006 Alfa Romeo 166 vs. 2005 Alfa Romeo 156
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), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (247 HP @ 6200 RPM) has 30 more horse power than 2006 Alfa Romeo 166. (217 HP @ 6300 RPM) In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2006 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 166 weights approximately 175 kg more than 2005 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, 2005 Alfa Romeo 156 (305 Nm @ 4800 RPM) has 40 more torque (in Nm) than 2006 Alfa Romeo 166. (265 Nm @ 5000 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. 2006 Alfa Romeo 166 has automatic transmission and 2005 Alfa Romeo 156 has manual transmission. 2005 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Alfa Romeo 166 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Alfa Romeo 166 | 2005 Alfa Romeo 156 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 166 | 156 |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 3179 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 217 HP | 247 HP |
| Engine RPM | 6300 RPM | 6200 RPM |
| Torque | 265 Nm | 305 Nm |
| Torque RPM | 5000 RPM | 4800 RPM |
| Engine Bore Size | 93 mm | 93 mm |
| Engine Stroke Size | 72.6 mm | 78 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Top Speed | 236 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.6 seconds | 6.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1410 kg |
| Vehicle Length | 4730 mm | 4440 mm |
| Vehicle Width | 1810 mm | 1770 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2710 mm | 2600 mm |
| Fuel Consumption Overall | 13 L/100km | 12.3 L/100km |
| Fuel Tank Capacity | 69 L | 63 L |
