2009 Citroen C4 vs. 2007 Citroen C6
To start off, 2009 Citroen C4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Citroen C6. In addition, the cost of maintenance, including insurance, on 2007 Citroen C6 would be higher. At 2,179 cc (4 cylinders), 2007 Citroen C6 is equipped with a bigger engine. In terms of performance, 2007 Citroen C6 (168 HP @ 4000 RPM) has 60 more horse power than 2009 Citroen C4. (108 HP @ 4000 RPM) In normal driving conditions, 2007 Citroen C6 should accelerate faster than 2009 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C6 weights approximately 290 kg more than 2009 Citroen C4. 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 Citroen C6 (370 Nm @ 1500 RPM) has 130 more torque (in Nm) than 2009 Citroen C4. (240 Nm @ 1750 RPM). This means 2007 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 2009 Citroen C4 | 2007 Citroen C6 | |
| Make | Citroen | Citroen |
| Model | C4 | C6 |
| Year Released | 2009 | 2007 |
| Body Type | Minivan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 2179 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 168 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 240 Nm | 370 Nm |
| Torque RPM | 1750 RPM | 1500 RPM |
| Engine Bore Size | 75 mm | 85.1 mm |
| Engine Stroke Size | 88 mm | 96 mm |
| Engine Compression Ratio | 18.0:1 | 18.0:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 14.8 seconds | 10.3 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 | 1895 kg |
| Vehicle Width | 1840 mm | 1870 mm |
| Vehicle Height | 1630 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2910 mm |
| Fuel Consumption Overall | 5.9 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 60 L | 72 L |
