2009 Citroen C4 vs. 2010 Fiat Siena
To start off, 2010 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2009 Citroen C4. In addition, the cost of maintenance, including insurance, on 2009 Citroen C4 would be higher. At 1,581 cc (4 cylinders), 2010 Fiat Siena is equipped with a bigger engine. In terms of performance, 2009 Citroen C4 (108 HP @ 4000 RPM) has 2 more horse power than 2010 Fiat Siena. (106 HP @ 5500 RPM). In normal driving conditions, 2009 Citroen C4 should accelerate faster than 2010 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C4 weights approximately 510 kg more than 2010 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, 2009 Citroen C4 (240 Nm @ 1750 RPM) has 100 more torque (in Nm) than 2010 Fiat Siena. (140 Nm @ 4000 RPM). This means 2009 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2010 Fiat Siena.
Compare all specifications:
| 2009 Citroen C4 | 2010 Fiat Siena | |
| Make | Citroen | Fiat |
| Model | C4 | Siena |
| Year Released | 2009 | 2010 |
| Body Type | Minivan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 1581 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 106 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 240 Nm | 140 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 75 mm | 86.5 mm |
| Engine Stroke Size | 88 mm | 67.4 mm |
| Engine Compression Ratio | 18.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 14.8 seconds | 10.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1605 kg | 1095 kg |
| Vehicle Length | 4590 mm | 3550 mm |
| Vehicle Width | 1840 mm | 1640 mm |
| Vehicle Height | 1630 mm | 1490 mm |
| Wheelbase Size | 2730 mm | 2370 mm |
| Fuel Consumption Overall | 5.9 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 60 L | 47 L |
