2009 Citroen C4 vs. 2007 Opel Astra
To start off, 2009 Citroen C4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Opel Astra. In addition, the cost of maintenance, including insurance, on 2007 Opel Astra would be higher. At 1,796 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (138 HP @ 5600 RPM) has 30 more horse power than 2009 Citroen C4. (108 HP @ 4000 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2009 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C4 weights approximately 77 kg more than 2007 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, 2009 Citroen C4 (241 Nm @ 1750 RPM) has 66 more torque (in Nm) than 2007 Opel Astra. (175 Nm @ 3800 RPM). This means 2009 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2009 Citroen C4 | 2007 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2009 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 138 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 241 Nm | 175 Nm |
| Torque RPM | 1750 RPM | 3800 RPM |
| Engine Bore Size | 75 mm | 80.5 mm |
| Engine Stroke Size | 88 mm | 88.2 mm |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 192 km/hour | 210 km/hour |
| Acceleration 0-100mph | 12.4 seconds | 10.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1355 kg | 1278 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 | 4.7 L/100km | 7.3 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
