1988 Saab 9000 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 17 year(s). Which means there will be less support and parts availability for 1988 Saab 9000. In addition, the cost of maintenance, including insurance, on 1988 Saab 9000 would be higher. At 2,958 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (175 HP @ 4000 RPM) has 39 more horse power than 1988 Saab 9000. (136 HP @ 5500 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 1988 Saab 9000. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 365 kg more than 1988 Saab 9000. 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, 2005 Opel Signum (370 Nm @ 1900 RPM) has 198 more torque (in Nm) than 1988 Saab 9000. (172 Nm @ 3000 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1988 Saab 9000. 2005 Opel Signum has automatic transmission and 1988 Saab 9000 has manual transmission. 1988 Saab 9000 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1988 Saab 9000 | 2005 Opel Signum | |
| Make | Saab | Opel |
| Model | 9000 | Signum |
| Year Released | 1988 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1985 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 136 HP | 175 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 172 Nm | 370 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Bore Size | 90 mm | 87.5 mm |
| Engine Stroke Size | 78 mm | 82 mm |
| Engine Compression Ratio | 10.1:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 192 km/hour | 221 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1305 kg | 1670 kg |
| Vehicle Length | 4630 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2720 mm | 2620 mm |
| Fuel Tank Capacity | 54 L | 60 L |
