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 4,163 cc (8 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (350 HP @ 6800 RPM) has 169 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.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Citroen C4. In wet, icy, snow, or gravel driving conditions, 2009 Audi A6 will offer significantly more control. 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 (441 Nm @ 3500 RPM) has 261 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. 2009 Audi A6 has automatic transmission and 2007 Citroen C4 has manual transmission. 2007 Citroen C4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A6 will be easier to drive especially in heavy traffic.
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 | 4163 cc | 1997 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 181 HP |
| Engine RPM | 6800 RPM | 7000 RPM |
| Torque | 441 Nm | 180 Nm |
| Torque RPM | 3500 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 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| 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 | 13.2 L/100km | 11.5 L/100km |
| Fuel Tank Capacity | 80 L | 60 L |
