2007 Alfa Romeo 156 vs. 2004 Proton 400
To start off, 2007 Alfa Romeo 156 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Proton 400. In addition, the cost of maintenance, including insurance, on 2004 Proton 400 would be higher. At 2,490 cc (6 cylinders), 2007 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo 156 (189 HP @ 6300 RPM) has 115 more horse power than 2004 Proton 400. (74 HP @ 6000 RPM). In normal driving conditions, 2007 Alfa Romeo 156 should accelerate faster than 2004 Proton 400. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 156 weights approximately 385 kg more than 2004 Proton 400. 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 Alfa Romeo 156 (218 Nm @ 5000 RPM) has 110 more torque (in Nm) than 2004 Proton 400. (108 Nm @ 3000 RPM). This means 2007 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2004 Proton 400.
Compare all specifications:
| 2007 Alfa Romeo 156 | 2004 Proton 400 | |
| Make | Alfa Romeo | Proton |
| Model | 156 | 400 |
| Year Released | 2007 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2490 cc | 1299 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 189 HP | 74 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 218 Nm | 108 Nm |
| Torque RPM | 5000 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1355 kg | 970 kg |
| Vehicle Length | 4440 mm | 4370 mm |
| Vehicle Width | 1750 mm | 1700 mm |
| Vehicle Height | 1440 mm | 1390 mm |
| Wheelbase Size | 2600 mm | 2510 mm |
