2003 Opel Signum vs. 2005 Saab 03-Sep
To start off, 2005 Saab 03-Sep is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum 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 (175 HP @ 5500 RPM) has 27 more horse power than 2005 Saab 03-Sep. (148 HP @ 1800 RPM). In normal driving conditions, 2003 Opel Signum should accelerate faster than 2005 Saab 03-Sep. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 5 kg more than 2005 Saab 03-Sep. 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 130 more torque (in Nm) than 2005 Saab 03-Sep. (240 Nm @ 1800 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Saab 03-Sep.
Compare all specifications:
| 2003 Opel Signum | 2005 Saab 03-Sep | |
| Make | Opel | Saab |
| Model | Signum | 03-Sep |
| Year Released | 2003 | 2005 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 1985 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 148 HP |
| Engine RPM | 5500 RPM | 1800 RPM |
| Torque | 370 Nm | 240 Nm |
| Torque RPM | 1900 RPM | 1800 RPM |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1575 kg | 1570 kg |
| Vehicle Length | 4640 mm | 4640 mm |
| Vehicle Width | 1800 mm | 1720 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2710 mm |
