2004 Opel Vectra vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2004 Opel Vectra would be higher. At 2,958 cc (6 cylinders), 2004 Opel Vectra is equipped with a bigger engine. In terms of performance, 2004 Opel Vectra (148 HP @ 4000 RPM) has 30 more horse power than 2006 Opel Signum. (118 HP @ 4000 RPM). In normal driving conditions, 2004 Opel Vectra should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Vectra weights approximately 23 kg more than 2006 Opel Signum. 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, 2004 Opel Vectra (370 Nm @ 1900 RPM) has 89 more torque (in Nm) than 2006 Opel Signum. (281 Nm @ 2000 RPM). This means 2004 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum. 2004 Opel Vectra has automatic transmission and 2006 Opel Signum has manual transmission. 2006 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Opel Vectra | 2006 Opel Signum | |
| Make | Opel | Opel |
| Model | Vectra | Signum |
| Year Released | 2004 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 148 HP | 118 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 370 Nm | 281 Nm |
| Torque RPM | 1900 RPM | 2000 RPM |
| Top Speed | 218 km/hour | 191 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1638 kg | 1615 kg |
| Vehicle Length | 4600 mm | 4640 mm |
| Vehicle Width | 1800 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Consumption Overall | 7.4 L/100km | 6 L/100km |
| Fuel Tank Capacity | 61 L | 60 L |
