2003 Audi A6 vs. 2004 Audi S4
To start off, 2004 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 Audi A6 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 (339 HP @ 7000 RPM) has 113 more horse power than 2003 Audi A6. (226 HP @ 5800 RPM) In normal driving conditions, 2004 Audi S4 should accelerate faster than 2003 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A6 weights approximately 2 kg more than 2004 Audi S4.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2004 Audi S4 (410 Nm @ 3500 RPM) has 100 more torque (in Nm) than 2003 Audi A6. (310 Nm @ 1700 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2003 Audi A6 | 2004 Audi S4 | |
| Make | Audi | Audi |
| Model | A6 | S4 |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 226 HP | 339 HP |
| Engine RPM | 5800 RPM | 7000 RPM |
| Torque | 310 Nm | 410 Nm |
| Torque RPM | 1700 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 84.5 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Engine Compression Ratio | 9.3:1 | 11.0:1 |
| Top Speed | 245 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 5.6 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1662 kg | 1660 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2770 mm | 2430 mm |
| Fuel Consumption | 8.8 L/100km | 9.8 L/100km |
| Fuel Consumption City | 16.6 L/100km | 19.5 L/100km |
| Fuel Consumption Overall | 11.6 L/100km | 13.3 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
