2007 Audi S4 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 S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (341 HP) has 233 more horse power than 2009 Citroen C4. (108 HP). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2009 Citroen C4.
Let's talk about torque, 2007 Audi S4 (410 Nm @ 3500 RPM) has 263 more torque (in Nm) than 2009 Citroen C4. (147 Nm @ 4000 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 2007 Audi S4 | 2009 Citroen C4 | |
| Make | Audi | Citroen |
| Model | S4 | C4 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1587 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 341 HP | 108 HP |
| Torque | 410 Nm | 147 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.6 mm | 78.5 mm |
| Engine Stroke Size | 92.7 mm | 82 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 249 km/hour | 194 km/hour |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4590 mm | 4270 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2650 mm | 2610 mm |
| Fuel Tank Capacity | 63 L | 60 L |
