2003 Alfa Romeo 147 vs. 2006 Alfa Romeo 156
To start off, 2006 Alfa Romeo 156 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 147 would be higher. At 1,970 cc (4 cylinders), 2006 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 156 (149 HP @ 6300 RPM) has 50 more horse power than 2003 Alfa Romeo 147. (99 HP @ 4000 RPM) In normal driving conditions, 2006 Alfa Romeo 156 should accelerate faster than 2003 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 156 weights approximately 165 kg more than 2003 Alfa Romeo 147. 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, 2003 Alfa Romeo 147 (200 Nm @ 2000 RPM) has 19 more torque (in Nm) than 2006 Alfa Romeo 156. (181 Nm @ 3800 RPM). This means 2003 Alfa Romeo 147 will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 147 | 2006 Alfa Romeo 156 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 147 | 156 |
| Year Released | 2003 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1909 cc | 1970 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 99 HP | 149 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 200 Nm | 181 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Engine Bore Size | 82 mm | 83 mm |
| Engine Stroke Size | 90.4 mm | 91 mm |
| Engine Compression Ratio | 18.4:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 183 km/hour | 214 km/hour |
| Acceleration 0-100mph | 12.1 seconds | 8.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1345 kg | 1510 kg |
| Vehicle Length | 4180 mm | 4440 mm |
| Vehicle Width | 1740 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2600 mm | 2600 mm |
| Fuel Tank Capacity | 60 L | 63 L |
