2004 Opel Signum vs. 2002 Proton 400
To start off, 2004 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2002 Proton 400. In addition, the cost of maintenance, including insurance, on 2002 Proton 400 would be higher. At 1,995 cc (4 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 99 more horse power than 2002 Proton 400. (74 HP @ 6000 RPM). In normal driving conditions, 2004 Opel Signum should accelerate faster than 2002 Proton 400. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 564 kg more than 2002 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, 2004 Opel Signum (265 Nm @ 2500 RPM) has 157 more torque (in Nm) than 2002 Proton 400. (108 Nm @ 3000 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2002 Proton 400.
Compare all specifications:
| 2004 Opel Signum | 2002 Proton 400 | |
| Make | Opel | Proton |
| Model | Signum | 400 |
| Year Released | 2004 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 1299 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 173 HP | 74 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 265 Nm | 108 Nm |
| Torque RPM | 2500 RPM | 3000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1560 kg | 996 kg |
| Vehicle Length | 4640 mm | 4280 mm |
| Vehicle Width | 1800 mm | 1700 mm |
| Vehicle Height | 1470 mm | 1390 mm |
| Wheelbase Size | 2840 mm | 2510 mm |
