2005 Opel Astra vs. 2007 Citroen C4
To start off, 2007 Citroen C4 is newer by 2 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 1,796 cc (4 cylinders), 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (123 HP @ 5600 RPM) has 15 more horse power than 2007 Citroen C4. (108 HP @ 4000 RPM). In normal driving conditions, 2005 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 211 kg more than 2005 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 (240 Nm @ 1750 RPM) has 70 more torque (in Nm) than 2005 Opel Astra. (170 Nm @ 3800 RPM). This means 2007 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra. 2007 Citroen C4 has automatic transmission and 2005 Opel Astra has manual transmission. 2005 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Citroen C4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Opel Astra | 2007 Citroen C4 | |
| Make | Opel | Citroen |
| Model | Astra | C4 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 1560 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 108 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 170 Nm | 240 Nm |
| Torque RPM | 3800 RPM | 1750 RPM |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Top Speed | 205 km/hour | 192 km/hour |
| Acceleration 0-100mph | 9.8 seconds | 12.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1145 kg | 1356 kg |
| Wheelbase Size | 2610 mm | 2610 mm |
| Fuel Consumption Overall | 7.7 L/100km | 4.7 L/100km |
| Fuel Tank Capacity | 52 L | 60 L |
