2006 Opel Astra vs. 2007 Citroen C4
To start off, 2007 Citroen C4 is newer by 1 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 1,589 cc (4 cylinders), 2006 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Citroen C4 (108 HP @ 4000 RPM) has 4 more horse power than 2006 Opel Astra. (104 HP @ 6000 RPM) In normal driving conditions, 2007 Citroen C4 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C4 weights approximately 91 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, 2007 Citroen C4 (240 Nm @ 1750 RPM) has 90 more torque (in Nm) than 2006 Opel Astra. (150 Nm @ 3900 RPM). This means 2007 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra. 2007 Citroen C4 has automatic transmission and 2006 Opel Astra has manual transmission. 2006 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:
| 2006 Opel Astra | 2007 Citroen C4 | |
| Make | Opel | Citroen |
| Model | Astra | C4 |
| Year Released | 2006 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1589 cc | 1560 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 104 HP | 108 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 150 Nm | 240 Nm |
| Torque RPM | 3900 RPM | 1750 RPM |
| Engine Bore Size | 79.1 mm | 75 mm |
| Engine Stroke Size | 81.5 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 12.3 seconds | 12.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1265 kg | 1356 kg |
| Vehicle Length | 4260 mm | 4270 mm |
| Vehicle Width | 1760 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2620 mm | 2610 mm |
| Fuel Consumption Overall | 6.6 L/100km | 4.7 L/100km |
| Fuel Tank Capacity | 52 L | 60 L |
