2006 Fiat Siena vs. 2005 Opel Astra
To start off, 2006 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 1,979 cc (4 cylinders), 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (198 HP @ 5600 RPM) has 97 more horse power than 2006 Fiat Siena. (101 HP @ 5500 RPM) In normal driving conditions, 2005 Opel Astra should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 13 kg more than 2005 Opel Astra.
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, 2005 Opel Astra (250 Nm @ 1950 RPM) has 110 more torque (in Nm) than 2006 Fiat Siena. (140 Nm @ 4000 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2006 Fiat Siena | 2005 Opel Astra | |
| Make | Fiat | Opel |
| Model | Siena | Astra |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 1979 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 198 HP |
| Engine RPM | 5500 RPM | 5600 RPM |
| Torque | 140 Nm | 250 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Engine Bore Size | 86.4 mm | 86 mm |
| Engine Stroke Size | 67.4 mm | 86 mm |
| Engine Compression Ratio | 9.5:1 | 8.8:1 |
| Top Speed | 184 km/hour | 245 km/hour |
| Acceleration 0-100mph | 11.1 seconds | 7.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1783 kg | 1770 kg |
| Wheelbase Size | 2380 mm | 2840 mm |
| Fuel Consumption Overall | 8 L/100km | 9 L/100km |
| Fuel Tank Capacity | 54 L | 52 L |
