2005 Alfa Romeo 147 vs. 2004 Alfa Romeo 156
To start off, 2005 Alfa Romeo 147 is newer by 1 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 3,179 cc (6 cylinders), 2004 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (247 HP @ 6200 RPM) has 99 more horse power than 2005 Alfa Romeo 147. (148 HP @ 4000 RPM) In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 2005 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 171 kg more than 2005 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, both vehicles can yield 300 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2005 Alfa Romeo 147 | 2004 Alfa Romeo 156 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 147 | 156 |
| Year Released | 2005 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1968 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 | 247 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 300 Nm | 300 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 - Premium |
| Top Speed | 208 km/hour | 250 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1365 kg | 1536 kg |
| Vehicle Length | 4180 mm | 4450 mm |
| Vehicle Width | 1740 mm | 1750 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2550 mm | 2710 mm |
| Fuel Consumption Overall | 5.9 L/100km | 12.3 L/100km |
| Fuel Tank Capacity | 60 L | 63 L |
