2004 Opel Signum vs. 2002 Opel Vectra
To start off, 2004 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2002 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2002 Opel Vectra would be higher. At 2,198 cc (4 cylinders), 2002 Opel Vectra is equipped with a bigger engine. In terms of performance, 2002 Opel Vectra (143 HP @ 5600 RPM) has 18 more horse power than 2004 Opel Signum. (125 HP @ 5600 RPM) In normal driving conditions, 2002 Opel Vectra should accelerate faster than 2004 Opel Signum.
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, 2002 Opel Vectra (203 Nm @ 4000 RPM) has 33 more torque (in Nm) than 2004 Opel Signum. (170 Nm @ 3800 RPM). This means 2002 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2004 Opel Signum | 2002 Opel Vectra | |
| Make | Opel | Opel |
| Model | Signum | Vectra |
| Year Released | 2004 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 125 HP | 143 HP |
| Engine RPM | 5600 RPM | 5600 RPM |
| Torque | 170 Nm | 203 Nm |
| Torque RPM | 3800 RPM | 4000 RPM |
| Engine Bore Size | 80.5 mm | 86 mm |
| Engine Stroke Size | 88.2 mm | 94.6 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 4640 mm | 4600 mm |
| Vehicle Width | 1800 mm | 1770 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2700 mm | 2710 mm |
| Fuel Tank Capacity | 58 L | 61 L |
