2003 Fiat Siena vs. 2008 Opel Astra
To start off, 2008 Opel Astra is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 1,598 cc (4 cylinders), 2008 Opel Astra is equipped with a bigger engine. In terms of performance, 2008 Opel Astra (178 HP @ 5500 RPM) has 79 more horse power than 2003 Fiat Siena. (99 HP @ 6000 RPM) In normal driving conditions, 2008 Opel Astra should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Astra weights approximately 335 kg more than 2003 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, 2008 Opel Astra (230 Nm @ 1950 RPM) has 84 more torque (in Nm) than 2003 Fiat Siena. (146 Nm @ 4000 RPM). This means 2008 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena.
Compare all specifications:
| 2003 Fiat Siena | 2008 Opel Astra | |
| Make | Fiat | Opel |
| Model | Siena | Astra |
| Year Released | 2003 | 2008 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1596 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 99 HP | 178 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 146 Nm | 230 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1050 kg | 1385 kg |
| Vehicle Length | 4110 mm | 4300 mm |
| Vehicle Width | 1630 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2380 mm | 2620 mm |
