2006 Alfa Romeo 147 vs. 2004 Alfa Romeo 156
To start off, 2006 Alfa Romeo 147 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 156 would be higher. At 1,969 cc (4 cylinders), 2004 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (113 HP @ 4000 RPM) has 9 more horse power than 2006 Alfa Romeo 147. (104 HP @ 5600 RPM) In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 2006 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 140 kg more than 2006 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, 2004 Alfa Romeo 156 (275 Nm @ 2000 RPM) has 135 more torque (in Nm) than 2006 Alfa Romeo 147. (140 Nm @ 4200 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 147.
Compare all specifications:
| 2006 Alfa Romeo 147 | 2004 Alfa Romeo 156 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 147 | 156 |
| Year Released | 2006 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1969 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 104 HP | 113 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 140 Nm | 275 Nm |
| Torque RPM | 4200 RPM | 2000 RPM |
| Engine Bore Size | 82.1 mm | 82 mm |
| Engine Stroke Size | 75.7 mm | 90.4 mm |
| Engine Compression Ratio | 10.3:1 | 18.4:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 11.3 seconds | 10.3 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 | 1265 kg | 1405 kg |
| Vehicle Length | 4230 mm | 4440 mm |
| Vehicle Width | 1740 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2550 mm | 2550 mm |
| Fuel Consumption Overall | 8.1 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 60 L | 63 L |
