2009 Citroen C4 vs. 2011 Opel Astra
To start off, 2011 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Citroen C4. In addition, the cost of maintenance, including insurance, on 2009 Citroen C4 would be higher. At 1,998 cc (4 cylinders), 2011 Opel Astra is equipped with a bigger engine. In terms of performance, 2011 Opel Astra (197 HP @ 5600 RPM) has 89 more horse power than 2009 Citroen C4. (108 HP @ 4000 RPM) In normal driving conditions, 2011 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 220 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, 2011 Opel Astra (262 Nm @ 4200 RPM) has 22 more torque (in Nm) than 2009 Citroen C4. (240 Nm @ 1750 RPM). This means 2011 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 2009 Citroen C4 | 2011 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2009 | 2011 |
| Body Type | Minivan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 197 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 240 Nm | 262 Nm |
| Torque RPM | 1750 RPM | 4200 RPM |
| Engine Bore Size | 75 mm | 86.1 mm |
| Engine Stroke Size | 88 mm | 86 mm |
| Engine Compression Ratio | 18.0:1 | 8.8:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 14.8 seconds | 8.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1605 kg | 1385 kg |
| Vehicle Length | 4590 mm | 4260 mm |
| Vehicle Width | 1840 mm | 1760 mm |
| Vehicle Height | 1630 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2620 mm |
| Fuel Consumption Overall | 5.9 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
