2005 Citroen C4 vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Citroen C4. In addition, the cost of maintenance, including insurance, on 2005 Citroen C4 would be higher. At 1,998 cc, 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (197 HP) has 89 more horse power than 2005 Citroen C4. (108 HP) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2005 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 110 kg more than 2005 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 Opel Astra (262 Nm @ 1950 RPM) has 115 more torque (in Nm) than 2005 Citroen C4. (147 Nm @ 4000 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2005 Citroen C4.
Compare all specifications:
| 2005 Citroen C4 | 2007 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2005 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1587 cc | 1998 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 197 HP |
| Torque | 147 Nm | 262 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Engine Bore Size | 78.5 mm | 86 mm |
| Engine Stroke Size | 82 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 8.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 194 km/hour | 234 km/hour |
| Acceleration 0-100mph | 11.9 seconds | 7.8 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1275 kg | 1385 kg |
| Vehicle Length | 4270 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2610 mm | 2620 mm |
| Fuel Consumption Overall | 7.3 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
