2007 Fiat Siena vs. 2007 Opel Astra
To start off, both 2007 Fiat Siena and 2007 Opel Astra were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,364 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (89 HP @ 5600 RPM) has 17 more horse power than 2007 Fiat Siena. (72 HP @ 6000 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 210 kg more than 2007 Fiat Siena. 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, 2007 Opel Astra (125 Nm @ 4000 RPM) has 23 more torque (in Nm) than 2007 Fiat Siena. (102 Nm @ 3250 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2007 Fiat Siena | 2007 Opel Astra | |
| Make | Fiat | Opel |
| Model | Siena | Astra |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1242 cc | 1364 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 72 HP | 89 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 102 Nm | 125 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 70.9 mm | 73.5 mm |
| Engine Stroke Size | 78.9 mm | 80.6 mm |
| Engine Compression Ratio | 9.1:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 13.5 seconds | 14.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1070 kg | 1280 kg |
| Vehicle Length | 3830 mm | 4520 mm |
| Vehicle Width | 1640 mm | 2000 mm |
| Vehicle Height | 1440 mm | 1510 mm |
| Wheelbase Size | 2380 mm | 2710 mm |
| Fuel Consumption Overall | 7.8 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 54 L | 52 L |
