2003 Proton Impian vs. 2005 Smart ForFour
To start off, 2005 Smart ForFour is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Proton Impian. In addition, the cost of maintenance, including insurance, on 2003 Proton Impian would be higher. At 1,584 cc (4 cylinders), 2003 Proton Impian is equipped with a bigger engine. In terms of performance, 2003 Proton Impian (101 HP @ 6000 RPM) has 27 more horse power than 2005 Smart ForFour. (74 HP @ 6000 RPM). In normal driving conditions, 2003 Proton Impian should accelerate faster than 2005 Smart ForFour. With that said, vehicle weight also plays an important factor in acceleration. 2003 Proton Impian weights approximately 240 kg more than 2005 Smart ForFour. 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, 2003 Proton Impian (140 Nm @ 2750 RPM) has 39 more torque (in Nm) than 2005 Smart ForFour. (101 Nm @ 3500 RPM). This means 2003 Proton Impian will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart ForFour.
Compare all specifications:
| 2003 Proton Impian | 2005 Smart ForFour | |
| Make | Proton | Smart |
| Model | Impian | ForFour |
| Year Released | 2003 | 2005 |
| Engine Size | 1584 cc | 1124 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 101 HP | 74 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 140 Nm | 101 Nm |
| Torque RPM | 2750 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1205 kg | 965 kg |
| Vehicle Length | 4470 mm | 3760 mm |
| Vehicle Width | 1750 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2610 mm | 2510 mm |
