1999 Opel Signum vs. 2003 Saab 03-Sep
To start off, 2003 Saab 03-Sep 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 1,998 cc (4 cylinders), 2003 Saab 03-Sep is equipped with a bigger engine. In terms of performance, 2003 Saab 03-Sep (250 HP @ 5500 RPM) has 151 more horse power than 1999 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 2003 Saab 03-Sep should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Saab 03-Sep weights approximately 70 kg more than 1999 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, 2003 Saab 03-Sep (370 Nm @ 2700 RPM) has 130 more torque (in Nm) than 1999 Opel Signum. (240 Nm @ 1500 RPM). This means 2003 Saab 03-Sep will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum.
Compare all specifications:
| 1999 Opel Signum | 2003 Saab 03-Sep | |
| Make | Opel | Saab |
| Model | Signum | 03-Sep |
| Year Released | 1999 | 2003 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 99 HP | 250 HP |
| Engine RPM | 3120 RPM | 5500 RPM |
| Torque | 240 Nm | 370 Nm |
| Torque RPM | 1500 RPM | 2700 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 90 mm | 86 mm |
| Engine Compression Ratio | 18.5:1 | 9.5:1 |
| Top Speed | 185 km/hour | 250 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1595 kg | 1665 kg |
| Vehicle Length | 4640 mm | 4640 mm |
| Vehicle Width | 1800 mm | 1770 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2840 mm | 2610 mm |
| Fuel Tank Capacity | 60 L | 61 L |
