2008 Jeep Commander vs. 2004 Opel Signum
To start off, 2008 Jeep Commander is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 4,701 cc (8 cylinders), 2008 Jeep Commander is equipped with a bigger engine. In terms of performance, 2008 Jeep Commander (229 HP @ 4500 RPM) has 56 more horse power than 2004 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2008 Jeep Commander should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 Jeep Commander weights approximately 745 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Jeep Commander is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2008 Jeep Commander will offer significantly more control. 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 Jeep Commander (410 Nm @ 3600 RPM) has 145 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 2008 Jeep Commander will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 2008 Jeep Commander has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Jeep Commander will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Jeep Commander | 2004 Opel Signum | |
| Make | Jeep | Opel |
| Model | Commander | Signum |
| Year Released | 2008 | 2004 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4701 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 229 HP | 173 HP |
| Engine RPM | 4500 RPM | 5500 RPM |
| Torque | 410 Nm | 265 Nm |
| Torque RPM | 3600 RPM | 2500 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 86.5 mm | 86 mm |
| Engine Compression Ratio | 9.0:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 189 km/hour | 220 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2305 kg | 1560 kg |
| Vehicle Length | 4790 mm | 4640 mm |
| Vehicle Width | 1910 mm | 1800 mm |
| Vehicle Height | 1830 mm | 1470 mm |
| Wheelbase Size | 2790 mm | 2840 mm |
| Fuel Consumption Overall | 14.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 80 L | 60 L |
