2005 Alfa Romeo 156 vs. 2009 Citroen C6
To start off, 2009 Citroen C6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 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 36 more horse power than 2005 Alfa Romeo 156. (173 HP @ 4000 RPM) In normal driving conditions, 2009 Citroen C6 should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C6 weights approximately 565 kg more than 2005 Alfa Romeo 156. 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 103 more torque (in Nm) than 2005 Alfa Romeo 156. (187 Nm @ 3500 RPM). This means 2009 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156. 2009 Citroen C6 has automatic transmission and 2005 Alfa Romeo 156 has manual transmission. 2005 Alfa Romeo 156 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:
| 2005 Alfa Romeo 156 | 2009 Citroen C6 | |
| Make | Alfa Romeo | Citroen |
| Model | 156 | C6 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1969 cc | 2993 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 209 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 187 Nm | 290 Nm |
| Torque RPM | 3500 RPM | 3750 RPM |
| Engine Bore Size | 83 mm | 87 mm |
| Engine Stroke Size | 91 mm | 82.6 mm |
| Engine Compression Ratio | 10.0:1 | 10.9:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1250 kg | 1815 kg |
| Wheelbase Size | 2550 mm | 2910 mm |
