2003 Opel Signum vs. 1997 Opel Vectra
To start off, 2003 Opel Signum is newer by 6 year(s). Which means there will be less support and parts availability for 1997 Opel Vectra. In addition, the cost of maintenance, including insurance, on 1997 Opel Vectra would be higher. At 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (174 HP @ 4000 RPM) has 100 more horse power than 1997 Opel Vectra. (74 HP @ 5200 RPM). In normal driving conditions, 2003 Opel Signum should accelerate faster than 1997 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 510 kg more than 1997 Opel Vectra. 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 (370 Nm @ 1900 RPM) has 241 more torque (in Nm) than 1997 Opel Vectra. (129 Nm @ 2800 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1997 Opel Vectra. 2003 Opel Signum has automatic transmission and 1997 Opel Vectra has manual transmission. 1997 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Signum | 1997 Opel Vectra | |
| Make | Opel | Opel |
| Model | Signum | Vectra |
| Year Released | 2003 | 1997 |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 174 HP | 74 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 370 Nm | 129 Nm |
| Torque RPM | 1900 RPM | 2800 RPM |
| Engine Bore Size | 87.6 mm | 85 mm |
| Engine Stroke Size | 82 mm | 69.8 mm |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1695 kg | 1185 kg |
| Vehicle Length | 4640 mm | 4480 mm |
| Vehicle Width | 1800 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1430 mm |
