2006 Fiat Siena vs. 2004 Opel Signum
To start off, 2006 Fiat Siena is newer by 2 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 1,995 cc (4 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 72 more horse power than 2006 Fiat Siena. (101 HP @ 5500 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 223 kg more than 2004 Opel Signum.
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, 2004 Opel Signum (265 Nm @ 2500 RPM) has 125 more torque (in Nm) than 2006 Fiat Siena. (140 Nm @ 4000 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2006 Fiat Siena | 2004 Opel Signum | |
| Make | Fiat | Opel |
| Model | Siena | Signum |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 173 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 140 Nm | 265 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 86.4 mm | 86 mm |
| Engine Stroke Size | 67.4 mm | 86 mm |
| Engine Compression Ratio | 9.5:1 | 9.5:1 |
| Top Speed | 184 km/hour | 220 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1783 kg | 1560 kg |
| Vehicle Length | 3830 mm | 4640 mm |
| Vehicle Width | 1640 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2380 mm | 2840 mm |
| Fuel Consumption Overall | 8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 54 L | 60 L |
