2007 Opel Astra vs. 2001 Fiat Siena
To start off, 2007 Opel Astra is newer by 6 year(s). Which means there will be less support and parts availability for 2001 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2001 Fiat Siena would be higher. At 1,908 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (148 HP @ 4000 RPM) has 49 more horse power than 2001 Fiat Siena. (99 HP @ 6000 RPM). In normal driving conditions, 2007 Opel Astra should accelerate faster than 2001 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 343 kg more than 2001 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 (320 Nm @ 2000 RPM) has 174 more torque (in Nm) than 2001 Fiat Siena. (146 Nm @ 4000 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2001 Fiat Siena.
Compare all specifications:
| 2007 Opel Astra | 2001 Fiat Siena | |
| Make | Opel | Fiat |
| Model | Astra | Siena |
| Year Released | 2007 | 2001 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1908 cc | 1596 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 99 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 320 Nm | 146 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 80.5 mm |
| Engine Stroke Size | 90.4 mm | 78.4 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1393 kg | 1050 kg |
| Vehicle Length | 4300 mm | 4110 mm |
| Vehicle Width | 1760 mm | 1630 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2620 mm | 2380 mm |
