2007 Citroen C4 vs. 2011 Opel Astra
To start off, 2011 Opel Astra is newer by 4 year(s). Which means there will be less support and parts availability for 2007 Citroen C4. In addition, the cost of maintenance, including insurance, on 2007 Citroen C4 would be higher. At 1,997 cc (4 cylinders), 2007 Citroen C4 is equipped with a bigger engine. In terms of performance, 2011 Opel Astra (138 HP @ 6300 RPM) has 4 more horse power than 2007 Citroen C4. (134 HP @ 4000 RPM) In normal driving conditions, 2011 Opel Astra should accelerate faster than 2007 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C4 weights approximately 226 kg more than 2011 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, 2007 Citroen C4 (320 Nm @ 2000 RPM) has 144 more torque (in Nm) than 2011 Opel Astra. (176 Nm @ 3800 RPM). This means 2007 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2011 Opel Astra.
Compare all specifications:
| 2007 Citroen C4 | 2011 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2007 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 134 HP | 138 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 320 Nm | 176 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Engine Bore Size | 85 mm | 80.5 mm |
| Engine Stroke Size | 88 mm | 88.2 mm |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 10.8 seconds | 10.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1456 kg | 1230 kg |
| Vehicle Length | 4270 mm | 4480 mm |
| Vehicle Width | 1780 mm | 2030 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2610 mm | 2620 mm |
| Fuel Consumption Overall | 5.4 L/100km | 6.2 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
