1999 Audi A6 vs. 2009 Citroen C4
To start off, 2009 Citroen C4 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Audi A6. In addition, the cost of maintenance, including insurance, on 1999 Audi A6 would be higher. At 1,997 cc (4 cylinders), 2009 Citroen C4 is equipped with a bigger engine. In terms of performance, 1999 Audi A6 (149 HP @ 5700 RPM) has 11 more horse power than 2009 Citroen C4. (138 HP @ 6000 RPM). In normal driving conditions, 1999 Audi A6 should accelerate faster than 2009 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C4 weights approximately 255 kg more than 1999 Audi A6.
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, 1999 Audi A6 (210 Nm @ 1750 RPM) has 10 more torque (in Nm) than 2009 Citroen C4. (200 Nm @ 4000 RPM). This means 1999 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 1999 Audi A6 | 2009 Citroen C4 | |
| Make | Audi | Citroen |
| Model | A6 | C4 |
| Year Released | 1999 | 2009 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 149 HP | 138 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 210 Nm | 200 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 85 mm |
| Engine Stroke Size | 86.4 mm | 88 mm |
| Engine Compression Ratio | 9.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 217 km/hour | 195 km/hour |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1380 kg | 1635 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1820 mm | 1840 mm |
| Vehicle Height | 1460 mm | 1630 mm |
| Wheelbase Size | 2850 mm | 2730 mm |
| Fuel Consumption Overall | 13 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
