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 1,796 cc (4 cylinders), 2006 Opel Astra is equipped with a bigger engine. In terms of performance, 2006 Opel Astra (123 HP @ 5600 RPM) has 29 more horse power than 2004 Citroen C4. (94 HP @ 4000 RPM) In normal driving conditions, 2006 Opel Astra should accelerate faster than 2004 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Astra weights approximately 80 kg more than 2004 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, 2004 Citroen C4 (216 Nm @ 1750 RPM) has 46 more torque (in Nm) than 2006 Opel Astra. (170 Nm @ 3800 RPM). This means 2004 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2004 Citroen C4 | 2006 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2004 | 2006 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1587 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 94 HP | 123 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 216 Nm | 170 Nm |
| Torque RPM | 1750 RPM | 3800 RPM |
| Engine Bore Size | 75 mm | 80.5 mm |
| Engine Stroke Size | 88 mm | 88.2 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1245 kg | 1325 kg |
| Vehicle Length | 4270 mm | 4520 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1510 mm |
| Wheelbase Size | 2610 mm | 2710 mm |
| Fuel Tank Capacity | 60 L | 52 L |
