2003 Opel Signum vs. 2008 Saturn Aura
To start off, 2008 Saturn Aura is newer by 5 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 3,564 cc (6 cylinders), 2008 Saturn Aura is equipped with a bigger engine. In terms of performance, 2008 Saturn Aura (253 HP @ 6300 RPM) has 138 more horse power than 2003 Opel Signum. (115 HP @ 3000 RPM) In normal driving conditions, 2008 Saturn Aura should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 250 kg more than 2008 Saturn Aura.
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, 2008 Saturn Aura (340 Nm @ 3200 RPM) has 60 more torque (in Nm) than 2003 Opel Signum. (280 Nm @ 1500 RPM). This means 2008 Saturn Aura will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2008 Saturn Aura | |
| Make | Opel | Saturn |
| Model | Signum | Aura |
| Year Released | 2003 | 2008 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2172 cc | 3564 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 115 HP | 253 HP |
| Engine RPM | 3000 RPM | 6300 RPM |
| Torque | 280 Nm | 340 Nm |
| Torque RPM | 1500 RPM | 3200 RPM |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1285 kg |
| Vehicle Length | 4640 mm | 4860 mm |
| Vehicle Width | 1800 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2860 mm |
