2006 Audi A8 vs. 2009 Citroen C4
To start off, 2009 Citroen C4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Audi A8. In addition, the cost of maintenance, including insurance, on 2006 Audi A8 would be higher. At 3,934 cc (8 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (271 HP @ 3750 RPM) has 130 more horse power than 2009 Citroen C4. (141 HP @ 6000 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2009 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 354 kg more than 2009 Citroen C4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Citroen C4. In wet, icy, snow, or gravel driving conditions, 2006 Audi A8 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, 2006 Audi A8 (650 Nm @ 1800 RPM) has 450 more torque (in Nm) than 2009 Citroen C4. (200 Nm @ 4000 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 2006 Audi A8 | 2009 Citroen C4 | |
| Make | Audi | Citroen |
| Model | A8 | C4 |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 1996 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 141 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 650 Nm | 200 Nm |
| Torque RPM | 1800 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 85 mm |
| Engine Stroke Size | 95.5 mm | 88 mm |
| Engine Compression Ratio | 18.0:1 | 10.8:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 250 km/hour | 195 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 11.3 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1586 kg |
| Vehicle Length | 5190 mm | 4480 mm |
| Vehicle Width | 1900 mm | 2110 mm |
| Vehicle Height | 1460 mm | 1690 mm |
| Wheelbase Size | 3080 mm | 2730 mm |
| Fuel Consumption Overall | 9.6 L/100km | 8 L/100km |
| Fuel Tank Capacity | 90 L | 60 L |
