2004 Opel Signum vs. 2005 Subaru Impreza
To start off, 2005 Subaru Impreza is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 2,458 cc (4 cylinders), 2005 Subaru Impreza is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 7 more horse power than 2005 Subaru Impreza. (166 HP @ 5600 RPM). In normal driving conditions, 2004 Opel Signum should accelerate faster than 2005 Subaru Impreza. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 210 kg more than 2005 Subaru Impreza. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Subaru Impreza is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2005 Subaru Impreza will offer significantly more control. 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, 2004 Opel Signum (265 Nm) has 40 more torque (in Nm) than 2005 Subaru Impreza. (225 Nm). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Subaru Impreza.
Compare all specifications:
| 2004 Opel Signum | 2005 Subaru Impreza | |
| Make | Opel | Subaru |
| Model | Signum | Impreza |
| Year Released | 2004 | 2005 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2458 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 166 HP |
| Engine RPM | 5500 RPM | 5600 RPM |
| Torque | 265 Nm | 225 Nm |
| Engine Bore Size | 86 mm | 100 mm |
| Engine Stroke Size | 86 mm | 79 mm |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1350 kg |
| Vehicle Length | 4640 mm | 4420 mm |
| Vehicle Width | 1800 mm | 1750 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2840 mm | 2530 mm |
| Fuel Consumption Overall | 9.4 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 60 L | 60 L |
