2006 Citroen C4 vs. 2004 Opel Astra
To start off, 2006 Citroen C4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Opel Astra. In addition, the cost of maintenance, including insurance, on 2004 Opel Astra would be higher. At 1,997 cc (4 cylinders), 2006 Citroen C4 is equipped with a bigger engine. In terms of performance, 2004 Opel Astra (100 HP @ 6200 RPM) has 10 more horse power than 2006 Citroen C4. (90 HP @ 1900 RPM) In normal driving conditions, 2004 Opel Astra should accelerate faster than 2006 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Citroen C4 weights approximately 25 kg more than 2004 Opel Astra.
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 Citroen C4 (205 Nm @ 1900 RPM) has 63 more torque (in Nm) than 2004 Opel Astra. (142 Nm @ 3600 RPM). This means 2006 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Astra.
Compare all specifications:
| 2006 Citroen C4 | 2004 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2006 | 2004 |
| Body Type | Minivan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1584 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 90 HP | 100 HP |
| Engine RPM | 1900 RPM | 6200 RPM |
| Torque | 205 Nm | 142 Nm |
| Torque RPM | 1900 RPM | 3600 RPM |
| Engine Bore Size | 85 mm | 79 mm |
| Engine Stroke Size | 88 mm | 81.5 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1375 kg | 1350 kg |
| Vehicle Length | 4280 mm | 4280 mm |
| Vehicle Width | 1760 mm | 1720 mm |
| Vehicle Height | 1640 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2620 mm |
| Fuel Tank Capacity | 55 L | 52 L |
