2003 Opel Vectra vs. 1999 Opel Signum
To start off, 2003 Opel Vectra is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 3,175 cc (6 cylinders), 1999 Opel Signum is equipped with a bigger engine. In terms of performance, 1999 Opel Signum (208 HP @ 6200 RPM) has 108 more horse power than 2003 Opel Vectra. (100 HP @ 4300 RPM) In normal driving conditions, 1999 Opel Signum should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 120 kg more than 2003 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, 1999 Opel Signum (300 Nm @ 4000 RPM) has 95 more torque (in Nm) than 2003 Opel Vectra. (205 Nm @ 1600 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2003 Opel Vectra | 1999 Opel Signum | |
| Make | Opel | Opel |
| Model | Vectra | Signum |
| Year Released | 2003 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 100 HP | 208 HP |
| Engine RPM | 4300 RPM | 6200 RPM |
| Torque | 205 Nm | 300 Nm |
| Torque RPM | 1600 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 87.5 mm |
| Engine Stroke Size | 90 mm | 88 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1490 kg | 1610 kg |
| Vehicle Length | 4830 mm | 4640 mm |
| Vehicle Width | 1800 mm | 1800 mm |
| Vehicle Height | 1510 mm | 1470 mm |
