2009 Audi RS6 vs. 2005 Citroen C4
To start off, 2009 Audi RS6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Citroen C4. In addition, the cost of maintenance, including insurance, on 2005 Citroen C4 would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 434 more horse power than 2005 Citroen C4. (138 HP @ 6000 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 2005 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS6 weights approximately 749 kg more than 2005 Citroen C4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Citroen C4. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS6 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 RS6 (650 Nm) has 540 more torque (in Nm) than 2005 Citroen C4. (110 Nm). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Citroen C4.
Compare all specifications:
| 2009 Audi RS6 | 2005 Citroen C4 | |
| Make | Audi | Citroen |
| Model | RS6 | C4 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 1997 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 572 HP | 138 HP |
| Engine RPM | 6250 RPM | 6000 RPM |
| Torque | 650 Nm | 110 Nm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2028 kg | 1279 kg |
| Vehicle Length | 4930 mm | 4270 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 2610 mm |
| Fuel Tank Capacity | 80 L | 60 L |
