2004 Citroen C4 vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Citroen C4. In addition, the cost of maintenance, including insurance, on 2004 Citroen C4 would be higher. At 1,997 cc (4 cylinders), 2004 Citroen C4 is equipped with a bigger engine. In terms of performance, 2006 Opel Astra (148 HP @ 4000 RPM) has 13 more horse power than 2004 Citroen C4. (135 HP @ 4000 RPM) In normal driving conditions, 2006 Opel Astra should accelerate faster than 2004 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, 2006 Opel Astra (320 Nm @ 2000 RPM) has 6 more torque (in Nm) than 2004 Citroen C4. (314 Nm @ 2000 RPM). This means 2006 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2004 Citroen C4.
Compare all specifications:
| 2004 Citroen C4 | 2006 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2004 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1910 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 135 HP | 148 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 314 Nm | 320 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Bore Size | 85 mm | 83 mm |
| Engine Stroke Size | 88 mm | 92 mm |
| Engine Compression Ratio | 11.0:1 | 17.5:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Width | 1780 mm | 1760 mm |
