2003 Fiat Siena vs. 2003 Opel Astra
To start off, both 2003 Fiat Siena and 2003 Opel Astra were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,198 cc (4 cylinders), 2003 Opel Astra is equipped with a bigger engine. In terms of performance, 2003 Opel Astra (148 HP @ 5800 RPM) has 79 more horse power than 2003 Fiat Siena. (69 HP @ 4500 RPM) In normal driving conditions, 2003 Opel Astra should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Astra weights approximately 198 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, 2003 Opel Astra (203 Nm @ 4000 RPM) has 75 more torque (in Nm) than 2003 Fiat Siena. (128 Nm @ 2500 RPM). This means 2003 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena. 2003 Opel Astra has automatic transmission and 2003 Fiat Siena has manual transmission. 2003 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Astra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Fiat Siena | 2003 Opel Astra | |
| Make | Fiat | Opel |
| Model | Siena | Astra |
| Year Released | 2003 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 69 HP | 148 HP |
| Engine RPM | 4500 RPM | 5800 RPM |
| Torque | 128 Nm | 203 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Engine Bore Size | 82.7 mm | 86 mm |
| Engine Stroke Size | 79.2 mm | 94.6 mm |
| Engine Compression Ratio | 20.3:1 | 10.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1100 kg | 1298 kg |
| Vehicle Length | 4110 mm | 4260 mm |
| Vehicle Width | 1630 mm | 1720 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2380 mm | 2740 mm |
