2007 Audi A4 vs. 2009 Citroen C4
To start off, 2009 Citroen C4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 3,123 cc, 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (252 HP @ 5100 RPM) has 144 more horse power than 2009 Citroen C4. (108 HP @ 4000 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 2009 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 93 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.
Let's talk about torque, 2007 Audi A4 (330 Nm @ 3250 RPM) has 90 more torque (in Nm) than 2009 Citroen C4. (240 Nm @ 1750 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 2007 Audi A4 | 2009 Citroen C4 | |
| Make | Audi | Citroen |
| Model | A4 | C4 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 1560 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 108 HP |
| Engine RPM | 5100 RPM | 4000 RPM |
| Torque | 330 Nm | 240 Nm |
| Torque RPM | 3250 RPM | 1750 RPM |
| Engine Bore Size | 84.5 mm | 75 mm |
| Engine Stroke Size | 92.8 mm | 88 mm |
| Engine Compression Ratio | 12.5:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 180 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 14.8 seconds |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1698 kg | 1605 kg |
| Vehicle Length | 4580 mm | 4590 mm |
| Vehicle Width | 1400 mm | 1840 mm |
| Vehicle Height | 1780 mm | 1630 mm |
| Wheelbase Size | 2660 mm | 2730 mm |
| Fuel Consumption Overall | 11 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
