2009 Citroen C6 vs. 2007 Opel Astra
To start off, 2009 Citroen C6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Opel Astra. In addition, the cost of maintenance, including insurance, on 2007 Opel Astra would be higher. At 2,720 cc (6 cylinders), 2009 Citroen C6 is equipped with a bigger engine. In terms of performance, 2009 Citroen C6 (201 HP @ 4200 RPM) has 53 more horse power than 2007 Opel Astra. (148 HP @ 4000 RPM). In normal driving conditions, 2009 Citroen C6 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C6 weights approximately 420 kg more than 2007 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 C6 (440 Nm @ 1900 RPM) has 120 more torque (in Nm) than 2007 Opel Astra. (320 Nm @ 2000 RPM). This means 2009 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra. 2009 Citroen C6 has automatic transmission and 2007 Opel Astra has manual transmission. 2007 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Citroen C6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Citroen C6 | 2007 Opel Astra | |
| Make | Citroen | Opel |
| Model | C6 | Astra |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2720 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 201 HP | 148 HP |
| Engine RPM | 4200 RPM | 4000 RPM |
| Torque | 440 Nm | 320 Nm |
| Torque RPM | 1900 RPM | 2000 RPM |
| Engine Bore Size | 81 mm | 82 mm |
| Engine Stroke Size | 88 mm | 90.4 mm |
| Engine Compression Ratio | 17.3:1 | 17.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 230 km/hour | 207 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 9.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1870 kg | 1450 kg |
| Vehicle Length | 4910 mm | 4520 mm |
| Vehicle Width | 1870 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2910 mm | 2710 mm |
| Fuel Consumption Overall | 8.7 L/100km | 6.1 L/100km |
| Fuel Tank Capacity | 72 L | 52 L |
