2005 Audi A6 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 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 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 39 more horse power than 2005 Audi A6. (162 HP @ 4000 RPM) In normal driving conditions, 2009 Citroen C6 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C6 weights approximately 280 kg more than 2005 Audi A6. 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 130 more torque (in Nm) than 2005 Audi A6. (310 Nm @ 1400 RPM). This means 2009 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2009 Citroen C6 | |
| Make | Audi | Citroen |
| Model | A6 | C6 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2720 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 162 HP | 201 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 310 Nm | 440 Nm |
| Torque RPM | 1400 RPM | 1900 RPM |
| Engine Bore Size | 78.3 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 88 mm |
| Engine Compression Ratio | 19.5:1 | 17.3:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 217 km/hour | 230 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 9.6 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 | 1590 kg | 1870 kg |
| Wheelbase Size | 2770 mm | 2910 mm |
| Fuel Consumption Overall | 6.9 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 70 L | 72 L |
