2009 Audi A6 vs. 2007 Citroen C4
To start off, 2009 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Citroen C4. In addition, the cost of maintenance, including insurance, on 2007 Citroen C4 would be higher. At 3,121 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (255 HP @ 6500 RPM) has 74 more horse power than 2007 Citroen C4. (181 HP @ 7000 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2007 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 202 kg more than 2007 Citroen C4. 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 Audi A6 (330 Nm @ 3250 RPM) has 150 more torque (in Nm) than 2007 Citroen C4. (180 Nm @ 7000 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Citroen C4.
Compare all specifications:
| 2009 Audi A6 | 2007 Citroen C4 | |
| Make | Audi | Citroen |
| Model | A6 | C4 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3121 cc | 1997 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 181 HP |
| Engine RPM | 6500 RPM | 7000 RPM |
| Torque | 330 Nm | 180 Nm |
| Torque RPM | 3250 RPM | 7000 RPM |
| Engine Bore Size | 84.5 mm | 85 mm |
| Engine Stroke Size | 92.8 mm | 88 mm |
| Engine Compression Ratio | 12.5:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 6.9 seconds | 8.3 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1540 kg | 1338 kg |
| Vehicle Length | 4930 mm | 4270 mm |
| Vehicle Width | 2040 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 2610 mm |
| Fuel Consumption Overall | 9.8 L/100km | 11.5 L/100km |
| Fuel Tank Capacity | 80 L | 60 L |
