2004 Proton 400 vs. 2007 Subaru Impreza
To start off, 2007 Subaru Impreza 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 1,994 cc (4 cylinders), 2007 Subaru Impreza is equipped with a bigger engine. In terms of performance, 2007 Subaru Impreza (158 HP @ 6400 RPM) has 84 more horse power than 2004 Proton 400. (74 HP @ 6000 RPM) In normal driving conditions, 2007 Subaru Impreza should accelerate faster than 2004 Proton 400. With that said, vehicle weight also plays an important factor in acceleration. 2007 Subaru Impreza weights approximately 375 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.
Because 2007 Subaru Impreza is four wheel drive (4WD), it will have significant more traction and grip than 2004 Proton 400. In wet, icy, snow, or gravel driving conditions, 2007 Subaru Impreza 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, 2007 Subaru Impreza (186 Nm @ 3600 RPM) has 78 more torque (in Nm) than 2004 Proton 400. (108 Nm @ 3000 RPM). This means 2007 Subaru Impreza will have an easier job in driving up hills or pulling heavy equipment than 2004 Proton 400.
Compare all specifications:
| 2004 Proton 400 | 2007 Subaru Impreza | |
| Make | Proton | Subaru |
| Model | 400 | Impreza |
| Year Released | 2004 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1299 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 74 HP | 158 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 108 Nm | 186 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 970 kg | 1345 kg |
| Vehicle Length | 4370 mm | 4450 mm |
| Vehicle Width | 1700 mm | 1700 mm |
| Vehicle Height | 1390 mm | 1490 mm |
| Wheelbase Size | 2510 mm | 2530 mm |
