2003 Proton 400 vs. 2004 Proton Gen-2
To start off, 2004 Proton Gen-2 is newer by 1 year(s). Which means there will be less support and parts availability for 2003 Proton 400. In addition, the cost of maintenance, including insurance, on 2003 Proton 400 would be higher. At 1,597 cc (4 cylinders), 2004 Proton Gen-2 is equipped with a bigger engine. In terms of performance, 2004 Proton Gen-2 (109 HP @ 6000 RPM) has 35 more horse power than 2003 Proton 400. (74 HP @ 6000 RPM) In normal driving conditions, 2004 Proton Gen-2 should accelerate faster than 2003 Proton 400.
Let's talk about torque, 2004 Proton Gen-2 (148 Nm @ 4000 RPM) has 40 more torque (in Nm) than 2003 Proton 400. (108 Nm @ 3000 RPM). This means 2004 Proton Gen-2 will have an easier job in driving up hills or pulling heavy equipment than 2003 Proton 400.
Compare all specifications:
| 2003 Proton 400 | 2004 Proton Gen-2 | |
| Make | Proton | Proton |
| Model | 400 | Gen-2 |
| Year Released | 2003 | 2004 |
| Engine Size | 1297 cc | 1597 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 109 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 108 Nm | 148 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4280 mm | 4320 mm |
| Vehicle Width | 1700 mm | 1730 mm |
| Vehicle Height | 1390 mm | 1440 mm |
| Wheelbase Size | 2510 mm | 2610 mm |
