2007 Fiat Siena vs. 2004 Opel Zafira
To start off, 2007 Fiat Siena is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Opel Zafira. In addition, the cost of maintenance, including insurance, on 2004 Opel Zafira would be higher. At 2,198 cc (4 cylinders), 2004 Opel Zafira is equipped with a bigger engine. In terms of performance, 2004 Opel Zafira (123 HP @ 4000 RPM) has 23 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM) In normal driving conditions, 2004 Opel Zafira should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Zafira weights approximately 480 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, 2004 Opel Zafira (270 Nm @ 1500 RPM) has 195 more torque (in Nm) than 2007 Fiat Siena. (75 Nm @ 5500 RPM). This means 2004 Opel Zafira will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2007 Fiat Siena | 2004 Opel Zafira | |
| Make | Fiat | Opel |
| Model | Siena | Zafira |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 100 HP | 123 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 75 Nm | 270 Nm |
| Torque RPM | 5500 RPM | 1500 RPM |
| Engine Bore Size | 86.4 mm | 84 mm |
| Engine Stroke Size | 67.4 mm | 98 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 184 km/hour | 187 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1070 kg | 1550 kg |
| Vehicle Width | 1640 mm | 1750 mm |
| Vehicle Height | 1440 mm | 1640 mm |
| Wheelbase Size | 2380 mm | 2710 mm |
| Fuel Consumption Overall | 8.2 L/100km | 6.9 L/100km |
| Fuel Tank Capacity | 54 L | 58 L |
