2008 Opel Signum vs. 2007 Proton Arena
To start off, 2008 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Proton Arena. In addition, the cost of maintenance, including insurance, on 2007 Proton Arena would be higher. At 2,957 cc (6 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (175 HP @ 4000 RPM) has 89 more horse power than 2007 Proton Arena. (86 HP @ 6000 RPM). In normal driving conditions, 2008 Opel Signum should accelerate faster than 2007 Proton Arena. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 635 kg more than 2007 Proton Arena. 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, 2008 Opel Signum (370 Nm @ 1900 RPM) has 246 more torque (in Nm) than 2007 Proton Arena. (124 Nm @ 3000 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Proton Arena.
Compare all specifications:
| 2008 Opel Signum | 2007 Proton Arena | |
| Make | Opel | Proton |
| Model | Signum | Arena |
| Year Released | 2008 | 2007 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2957 cc | 1467 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 86 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 370 Nm | 124 Nm |
| Torque RPM | 1900 RPM | 3000 RPM |
| Engine Bore Size | 87.5 mm | 75 mm |
| Engine Stroke Size | 82 mm | 82 mm |
| Engine Compression Ratio | 18.5:1 | 9.2:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 221 km/hour | 155 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 13.7 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1670 kg | 1035 kg |
| Vehicle Length | 4640 mm | 4460 mm |
| Vehicle Width | 1800 mm | 1500 mm |
| Vehicle Height | 1470 mm | 1720 mm |
| Wheelbase Size | 2840 mm | 2610 mm |
| Fuel Consumption Overall | 7.4 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 60 L | 50 L |
