2006 Opel Signum vs. 2005 Proton Impian
To start off, 2006 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Proton Impian. In addition, the cost of maintenance, including insurance, on 2005 Proton Impian would be higher. At 1,910 cc (4 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (118 HP @ 4000 RPM) has 17 more horse power than 2005 Proton Impian. (101 HP @ 6000 RPM). In normal driving conditions, 2006 Opel Signum should accelerate faster than 2005 Proton Impian. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 410 kg more than 2005 Proton Impian. 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, 2006 Opel Signum (281 Nm @ 2000 RPM) has 141 more torque (in Nm) than 2005 Proton Impian. (140 Nm @ 2750 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Proton Impian.
Compare all specifications:
| 2006 Opel Signum | 2005 Proton Impian | |
| Make | Opel | Proton |
| Model | Signum | Impian |
| Year Released | 2006 | 2005 |
| Engine Size | 1910 cc | 1584 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 118 HP | 101 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 281 Nm | 140 Nm |
| Torque RPM | 2000 RPM | 2750 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1615 kg | 1205 kg |
| Vehicle Length | 4640 mm | 4470 mm |
| Vehicle Width | 1800 mm | 1750 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2610 mm |
