2003 Fiat Siena vs. 2007 Opel Zafira
To start off, 2007 Opel Zafira is newer by 4 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 1,794 cc (4 cylinders), 2007 Opel Zafira is equipped with a bigger engine. In terms of performance, 2007 Opel Zafira (138 HP @ 6300 RPM) has 68 more horse power than 2003 Fiat Siena. (70 HP @ 5750 RPM) In normal driving conditions, 2007 Opel Zafira should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Zafira weights approximately 483 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, 2007 Opel Zafira (175 Nm @ 3800 RPM) has 80 more torque (in Nm) than 2003 Fiat Siena. (95 Nm @ 4000 RPM). This means 2007 Opel Zafira will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena.
Compare all specifications:
| 2003 Fiat Siena | 2007 Opel Zafira | |
| Make | Fiat | Opel |
| Model | Siena | Zafira |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 999 cc | 1794 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 70 HP | 138 HP |
| Engine RPM | 5750 RPM | 6300 RPM |
| Torque | 95 Nm | 175 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1020 kg | 1503 kg |
| Vehicle Length | 4110 mm | 4050 mm |
| Vehicle Width | 1630 mm | 1650 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2380 mm | 2620 mm |
