2005 Audi S4 vs. 2004 Audi A6
To start off, 2005 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 119 more horse power than 2004 Audi A6. (221 HP @ 4000 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 75 kg more than 2004 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 Audi A6 (430 Nm) has 20 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2004 Audi A6 | |
| Make | Audi | Audi |
| Model | S4 | A6 |
| Year Released | 2005 | 2004 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 2974 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 221 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 410 Nm | 430 Nm |
| Engine Bore Size | 85 mm | 83 mm |
| Engine Stroke Size | 93 mm | 91.4 mm |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1765 kg |
| Vehicle Length | 4580 mm | 4920 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2850 mm |
| Fuel Consumption Highway | 10.2 L/100km | 6.3 L/100km |
| Fuel Consumption City | 13.8 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
