2011 Citroen C6 vs. 2004 Alfa Romeo 166
To start off, 2011 Citroen C6 is newer by 7 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 3,177 cc (6 cylinders), 2004 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 166 (247 HP @ 6200 RPM) has 38 more horse power than 2011 Citroen C6. (209 HP @ 6000 RPM) In normal driving conditions, 2004 Alfa Romeo 166 should accelerate faster than 2011 Citroen C6. With that said, vehicle weight also plays an important factor in acceleration. 2011 Citroen C6 weights approximately 275 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, 2011 Citroen C6 (290 Nm @ 3750 RPM) has 1 more torque (in Nm) than 2004 Alfa Romeo 166. (289 Nm @ 4800 RPM). This means 2011 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 166. 2011 Citroen C6 has automatic transmission and 2004 Alfa Romeo 166 has manual transmission. 2004 Alfa Romeo 166 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Citroen C6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2011 Citroen C6 | 2004 Alfa Romeo 166 | |
| Make | Citroen | Alfa Romeo |
| Model | C6 | 166 |
| Year Released | 2011 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3177 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 209 HP | 247 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 290 Nm | 289 Nm |
| Torque RPM | 3750 RPM | 4800 RPM |
| Engine Bore Size | 87 mm | 93 mm |
| Engine Stroke Size | 82.6 mm | 78 mm |
| Engine Compression Ratio | 10.9:1 | 10.5:1 |
| Top Speed | 230 km/hour | 245 km/hour |
| Acceleration 0-100mph | 10 seconds | 7.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1815 kg | 1540 kg |
| Vehicle Length | 4910 mm | 4730 mm |
| Vehicle Width | 1870 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2910 mm | 2550 mm |
| Fuel Consumption Overall | 11.2 L/100km | 12.5 L/100km |
