2009 Citroen C4 vs. 2006 Fiat Siena
To start off, 2009 Citroen C4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2006 Fiat Siena would be higher. At 1,997 cc (4 cylinders), 2009 Citroen C4 is equipped with a bigger engine. In terms of performance, 2009 Citroen C4 (134 HP @ 4000 RPM) has 34 more horse power than 2006 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2009 Citroen C4 should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 88 kg more than 2009 Citroen C4.
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, 2009 Citroen C4 (270 Nm @ 2000 RPM) has 196 more torque (in Nm) than 2006 Fiat Siena. (74 Nm @ 5500 RPM). This means 2009 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena. 2009 Citroen C4 has automatic transmission and 2006 Fiat Siena has manual transmission. 2006 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Citroen C4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Citroen C4 | 2006 Fiat Siena | |
| Make | Citroen | Fiat |
| Model | C4 | Siena |
| Year Released | 2009 | 2006 |
| Body Type | Minivan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1581 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 134 HP | 100 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 270 Nm | 74 Nm |
| Torque RPM | 2000 RPM | 5500 RPM |
| Engine Compression Ratio | 18.0:1 | 9.5:1 |
| Acceleration 0-100mph | 13.7 seconds | 11.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1695 kg | 1783 kg |
| Vehicle Length | 4590 mm | 3830 mm |
| Vehicle Width | 1840 mm | 1640 mm |
| Vehicle Height | 1630 mm | 1440 mm |
| Wheelbase Size | 2730 mm | 2380 mm |
| Fuel Consumption Overall | 6.1 L/100km | 8 L/100km |
| Fuel Tank Capacity | 60 L | 54 L |
