2004 Audi A6 vs. 2006 Audi A4
To start off, 2006 Audi A4 is newer by 2 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 2,496 cc (6 cylinders), 2004 Audi A6 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (187 HP @ 5700 RPM) has 7 more horse power than 2004 Audi A6. (180 HP @ 6000 RPM) In normal driving conditions, 2006 Audi A4 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 267 kg more than 2006 Audi A4.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 2006 Audi A4 (240 Nm @ 1950 RPM) has 5 more torque (in Nm) than 2004 Audi A6. (235 Nm @ 3000 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 2006 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2004 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 1781 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 180 HP | 187 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 235 Nm | 240 Nm |
| Torque RPM | 3000 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 77.4 mm | 86.4 mm |
| Engine Compression Ratio | 10.3:1 | 9.3:1 |
| Top Speed | 221 km/hour | 228 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 8.6 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1662 kg | 1395 kg |
| Vehicle Length | 4940 mm | 4550 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption | 7.2 L/100km | 8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 11.4 L/100km |
| Fuel Consumption Overall | 9.6 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
