2005 Opel Astra vs. 2011 Citroen C4
To start off, 2011 Citroen C4 is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 1,997 cc (4 cylinders), 2011 Citroen C4 is equipped with a bigger engine. In terms of performance, 2011 Citroen C4 (138 HP @ 6000 RPM) has 56 more horse power than 2005 Opel Astra. (82 HP @ 4300 RPM) In normal driving conditions, 2011 Citroen C4 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2011 Citroen C4 weights approximately 245 kg more than 2005 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, 2011 Citroen C4 (200 Nm @ 4000 RPM) has 15 more torque (in Nm) than 2005 Opel Astra. (185 Nm @ 1500 RPM). This means 2011 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2005 Opel Astra | 2011 Citroen C4 | |
| Make | Opel | Citroen |
| Model | Astra | C4 |
| Year Released | 2005 | 2011 |
| Body Type | Hatchback | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 82 HP | 138 HP |
| Engine RPM | 4300 RPM | 6000 RPM |
| Torque | 185 Nm | 200 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Engine Compression Ratio | 18.5:1 | 11.0:1 |
| Top Speed | 165 km/hour | 195 km/hour |
| Acceleration 0-100mph | 15.5 seconds | 12.6 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1390 kg | 1635 kg |
| Vehicle Length | 4120 mm | 4590 mm |
| Vehicle Width | 1720 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1630 mm |
| Wheelbase Size | 2640 mm | 2730 mm |
| Fuel Tank Capacity | 52 L | 60 L |
