2007 Audi A4 vs. 2005 Audi S4
To start off, 2007 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 4000 RPM) has 88 more horse power than 2007 Audi A4. (252 HP @ 5100 RPM) In normal driving conditions, 2005 Audi S4 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 30 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 80 more torque (in Nm) than 2007 Audi A4. (330 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2005 Audi S4 | |
| Make | Audi | Audi |
| Model | A4 | S4 |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3121 cc | 4163 cc |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 252 HP | 340 HP |
| Engine RPM | 5100 RPM | 4000 RPM |
| Torque | 330 Nm | 410 Nm |
| Engine Bore Size | 84.5 mm | 85 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1740 kg | 1770 kg |
| Vehicle Length | 4580 mm | 4550 mm |
| Vehicle Width | 1400 mm | 1770 mm |
| Vehicle Height | 1780 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2770 mm |
| Fuel Consumption Overall | 11.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 66 L |
