2003 Alfa Romeo 156 vs. 2007 Peugeot 407
To start off, 2007 Peugeot 407 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 2,177 cc (4 cylinders), 2007 Peugeot 407 is equipped with a bigger engine. In terms of performance, 2007 Peugeot 407 (168 HP @ 4000 RPM) has 30 more horse power than 2003 Alfa Romeo 156. (138 HP @ 4000 RPM) In normal driving conditions, 2007 Peugeot 407 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2007 Peugeot 407 weights approximately 442 kg more than 2003 Alfa Romeo 156. 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, 2007 Peugeot 407 (370 Nm @ 1500 RPM) has 65 more torque (in Nm) than 2003 Alfa Romeo 156. (305 Nm @ 2000 RPM). This means 2007 Peugeot 407 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2007 Peugeot 407 | |
| Make | Alfa Romeo | Peugeot |
| Model | 156 | 407 |
| Year Released | 2003 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 2177 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 138 HP | 168 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 305 Nm | 370 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 90.4 mm | 96 mm |
| Engine Compression Ratio | 18.5:1 | 16.6:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 209 km/hour | 221 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1308 kg | 1750 kg |
| Vehicle Length | 4440 mm | 4770 mm |
| Vehicle Width | 1750 mm | 1820 mm |
| Vehicle Height | 1440 mm | 1500 mm |
| Wheelbase Size | 2600 mm | 2730 mm |
| Fuel Consumption Overall | 5.9 L/100km | 6.2 L/100km |
| Fuel Tank Capacity | 63 L | 66 L |
