2005 Audi A6 vs. 2004 Audi S4
To start off, 2005 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi S4. In addition, the cost of maintenance, including insurance, on 2004 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (340 HP @ 6200 RPM) has 160 more horse power than 2005 Audi A6. (180 HP @ 3300 RPM) In normal driving conditions, 2004 Audi S4 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 15 kg more than 2005 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 S4 (411 Nm) has 31 more torque (in Nm) than 2005 Audi A6. (380 Nm). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2004 Audi S4 | |
| Make | Audi | Audi |
| Model | A6 | S4 |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2669 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 180 HP | 340 HP |
| Engine RPM | 3300 RPM | 6200 RPM |
| Torque | 380 Nm | 411 Nm |
| Engine Bore Size | 83 mm | 85 mm |
| Engine Stroke Size | 83.1 mm | 93 mm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1880 kg | 1895 kg |
| Vehicle Length | 4920 mm | 4580 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 2580 mm | 2770 mm |
| Fuel Consumption Overall | 7.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
