2003 Opel Signum vs. 2004 Porsche Cayenne
To start off, 2004 Porsche Cayenne is newer by 1 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 3,189 cc (6 cylinders), 2004 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2004 Porsche Cayenne (247 HP @ 6000 RPM) has 122 more horse power than 2003 Opel Signum. (125 HP @ 6000 RPM) In normal driving conditions, 2004 Porsche Cayenne should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche Cayenne weights approximately 775 kg more than 2003 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2004 Porsche Cayenne 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, 2004 Porsche Cayenne (310 Nm @ 2500 RPM) has 143 more torque (in Nm) than 2003 Opel Signum. (167 Nm @ 3800 RPM). This means 2004 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2004 Porsche Cayenne | |
| Make | Opel | Porsche |
| Model | Signum | Cayenne |
| Year Released | 2003 | 2004 |
| Body Type | Hatchback | SUV |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 3189 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 125 HP | 247 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 167 Nm | 310 Nm |
| Torque RPM | 3800 RPM | 2500 RPM |
| Engine Compression Ratio | 10.5:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1385 kg | 2160 kg |
| Vehicle Length | 4640 mm | 4790 mm |
| Vehicle Width | 1800 mm | 1930 mm |
| Vehicle Height | 1470 mm | 1710 mm |
| Wheelbase Size | 2500 mm | 2860 mm |
| Fuel Consumption Overall | 7.5 L/100km | 13.2 L/100km |
| Fuel Tank Capacity | 58 L | 100 L |
