2003 Opel Signum vs. 2005 Opel Combo
To start off, 2005 Opel Combo is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 1,998 cc (4 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (99 HP @ 3120 RPM) has 25 more horse power than 2005 Opel Combo. (74 HP @ 4400 RPM). In normal driving conditions, 2003 Opel Signum should accelerate faster than 2005 Opel Combo. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 415 kg more than 2005 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, 2003 Opel Signum (230 Nm @ 1500 RPM) has 60 more torque (in Nm) than 2005 Opel Combo. (170 Nm @ 1800 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Combo.
Compare all specifications:
| 2003 Opel Signum | 2005 Opel Combo | |
| Make | Opel | Opel |
| Model | Signum | Combo |
| Year Released | 2003 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1684 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 99 HP | 74 HP |
| Engine RPM | 3120 RPM | 4400 RPM |
| Torque | 230 Nm | 170 Nm |
| Torque RPM | 1500 RPM | 1800 RPM |
| Engine Bore Size | 84 mm | 79 mm |
| Engine Stroke Size | 90 mm | 86 mm |
| Engine Compression Ratio | 18.5:1 | 19.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 185 km/hour | 155 km/hour |
| Acceleration 0-100mph | 14.3 seconds | 15.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1620 kg | 1205 kg |
| Vehicle Length | 4640 mm | 4340 mm |
| Vehicle Width | 1800 mm | 1690 mm |
| Vehicle Height | 1470 mm | 1810 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Consumption Overall | 5.9 L/100km | 5.4 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
