2009 Citroen C6 vs. 2004 Alfa Romeo 166
To start off, 2009 Citroen C6 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 166 would be higher. At 2,959 cc (6 cylinders), 2004 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 166 (217 HP @ 6300 RPM) has 16 more horse power than 2009 Citroen C6. (201 HP @ 4200 RPM) In normal driving conditions, 2004 Alfa Romeo 166 should accelerate faster than 2009 Citroen C6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C6 weights approximately 320 kg more than 2004 Alfa Romeo 166.
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 175 more torque (in Nm) than 2004 Alfa Romeo 166. (265 Nm @ 5000 RPM). This means 2009 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 166.
Compare all specifications:
| 2009 Citroen C6 | 2004 Alfa Romeo 166 | |
| Make | Citroen | Alfa Romeo |
| Model | C6 | 166 |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2720 cc | 2959 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 201 HP | 217 HP |
| Engine RPM | 4200 RPM | 6300 RPM |
| Torque | 440 Nm | 265 Nm |
| Torque RPM | 1900 RPM | 5000 RPM |
| Engine Bore Size | 81 mm | 93 mm |
| Engine Stroke Size | 88 mm | 72.6 mm |
| Engine Compression Ratio | 17.3:1 | 10.0:1 |
| Top Speed | 230 km/hour | 236 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 8.6 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1870 kg | 1550 kg |
| Vehicle Length | 4910 mm | 4730 mm |
| Vehicle Width | 1870 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2910 mm | 2600 mm |
| Fuel Consumption Overall | 8.7 L/100km | 13 L/100km |
| Fuel Tank Capacity | 72 L | 69 L |
