2007 Alfa Romeo 159 vs. 2009 Citroen C6
To start off, 2009 Citroen C6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Alfa Romeo 159. In addition, the cost of maintenance, including insurance, on 2007 Alfa Romeo 159 would be higher. At 2,993 cc (6 cylinders), 2009 Citroen C6 is equipped with a bigger engine. In terms of performance, 2009 Citroen C6 (209 HP @ 6000 RPM) has 91 more horse power than 2007 Alfa Romeo 159. (118 HP @ 4000 RPM) In normal driving conditions, 2009 Citroen C6 should accelerate faster than 2007 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C6 weights approximately 215 kg more than 2007 Alfa Romeo 159. 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 (290 Nm @ 3750 RPM) has 10 more torque (in Nm) than 2007 Alfa Romeo 159. (280 Nm @ 2000 RPM). This means 2009 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Alfa Romeo 159. 2009 Citroen C6 has automatic transmission and 2007 Alfa Romeo 159 has manual transmission. 2007 Alfa Romeo 159 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:
| 2007 Alfa Romeo 159 | 2009 Citroen C6 | |
| Make | Alfa Romeo | Citroen |
| Model | 159 | C6 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 118 HP | 209 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 280 Nm | 290 Nm |
| Torque RPM | 2000 RPM | 3750 RPM |
| Engine Bore Size | 82 mm | 87 mm |
| Engine Stroke Size | 90.4 mm | 82.6 mm |
| Engine Compression Ratio | 18.0:1 | 10.9:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 191 km/hour | 230 km/hour |
| Acceleration 0-100mph | 11.3 seconds | 10 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1600 kg | 1815 kg |
| Vehicle Length | 4670 mm | 4910 mm |
| Vehicle Width | 1830 mm | 1870 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2910 mm |
| Fuel Consumption Overall | 6 L/100km | 11.2 L/100km |
