2009 Citroen C4 vs. 2006 Opel Astra
To start off, 2009 Citroen C4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Opel Astra. In addition, the cost of maintenance, including insurance, on 2006 Opel Astra would be higher. At 1,560 cc (4 cylinders), 2009 Citroen C4 is equipped with a bigger engine. In terms of performance, 2009 Citroen C4 (108 HP @ 4000 RPM) has 19 more horse power than 2006 Opel Astra. (89 HP @ 5600 RPM). In normal driving conditions, 2009 Citroen C4 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C4 weights approximately 334 kg more than 2006 Opel Astra. 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, 2009 Citroen C4 (240 Nm @ 1750 RPM) has 115 more torque (in Nm) than 2006 Opel Astra. (125 Nm @ 4000 RPM). This means 2009 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2009 Citroen C4 | 2006 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2009 | 2006 |
| Body Type | Minivan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 1364 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 89 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 240 Nm | 125 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 75 mm | 73.5 mm |
| Engine Stroke Size | 88 mm | 80.6 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 14.8 seconds | 14.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1614 kg | 1280 kg |
| Vehicle Length | 4590 mm | 4520 mm |
| Vehicle Width | 1840 mm | 2000 mm |
| Vehicle Height | 1630 mm | 1510 mm |
| Wheelbase Size | 2730 mm | 2710 mm |
| Fuel Consumption Overall | 5.9 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
