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 3,178 cc (6 cylinders), 2003 Alfa Romeo 147 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 147 (247 HP @ 6200 RPM) has 99 more horse power than 2006 Alfa Romeo 156. (148 HP @ 4000 RPM). In normal driving conditions, 2003 Alfa Romeo 147 should accelerate faster than 2006 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 156 weights approximately 340 kg more than 2003 Alfa Romeo 147.
Because 2006 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 147. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Alfa Romeo 156 (305 Nm @ 2000 RPM) has 5 more torque (in Nm) than 2003 Alfa Romeo 147. (300 Nm @ 4800 RPM). This means 2006 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 147.
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 | 3178 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 148 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 300 Nm | 305 Nm |
| Torque RPM | 4800 RPM | 2000 RPM |
| Engine Bore Size | 93 mm | 82 mm |
| Engine Stroke Size | 78 mm | 90.4 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 246 km/hour | 192 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 10.5 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1265 kg | 1605 kg |
| Vehicle Length | 4180 mm | 4450 mm |
| Vehicle Width | 1740 mm | 1770 mm |
| Vehicle Height | 1450 mm | 1480 mm |
| Wheelbase Size | 2710 mm | 2600 mm |
| Fuel Consumption Overall | 7.5 L/100km | 7.3 L/100km |
| Fuel Tank Capacity | 63 L | 50 L |
