2005 Audi A6 vs. 2007 Citroen C6
To start off, 2007 Citroen C6 is newer by 2 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 2,945 cc (6 cylinders), 2007 Citroen C6 is equipped with a bigger engine. In terms of performance, 2007 Citroen C6 (208 HP @ 6000 RPM) has 70 more horse power than 2005 Audi A6. (138 HP @ 4000 RPM) In normal driving conditions, 2007 Citroen C6 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C6 weights approximately 190 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, 2005 Audi A6 (330 Nm @ 1750 RPM) has 40 more torque (in Nm) than 2007 Citroen C6. (290 Nm @ 3750 RPM). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Citroen C6. 2007 Citroen C6 has automatic transmission and 2005 Audi A6 has manual transmission. 2005 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Citroen C6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A6 | 2007 Citroen C6 | |
| Make | Audi | Citroen |
| Model | A6 | C6 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1982 cc | 2945 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 208 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 330 Nm | 290 Nm |
| Torque RPM | 1750 RPM | 3750 RPM |
| Engine Bore Size | 81 mm | 87 mm |
| Engine Stroke Size | 95.5 mm | 82.6 mm |
| Engine Compression Ratio | 18.0:1 | 10.9:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1625 kg | 1815 kg |
| Vehicle Length | 4940 mm | 4910 mm |
| Vehicle Width | 1820 mm | 1870 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2580 mm | 2910 mm |
| Fuel Consumption Overall | 5.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 70 L | 72 L |
