2003 Opel Combo vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Combo. In addition, the cost of maintenance, including insurance, on 2003 Opel Combo would be higher. At 1,908 cc (4 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (173 HP @ 5500 RPM) has 84 more horse power than 2003 Opel Combo. (89 HP @ 5800 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 2003 Opel Combo. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 325 kg more than 2003 Opel Combo. 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, 2005 Opel Signum (265 Nm @ 2500 RPM) has 127 more torque (in Nm) than 2003 Opel Combo. (138 Nm @ 3000 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Combo.
Compare all specifications:
| 2003 Opel Combo | 2005 Opel Signum | |
| Make | Opel | Opel |
| Model | Combo | Signum |
| Year Released | 2003 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1596 cc | 1908 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 89 HP | 173 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 138 Nm | 265 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 79 mm | 86 mm |
| Engine Stroke Size | 81.5 mm | 86 mm |
| Engine Compression Ratio | 9.6:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 14 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1235 kg | 1560 kg |
| Vehicle Length | 4330 mm | 4640 mm |
| Vehicle Width | 1810 mm | 1800 mm |
| Vehicle Height | 1810 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2620 mm |
| Fuel Consumption Overall | 7.4 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 52 L | 60 L |
