2004 Audi A4 vs. 2006 Audi A6
To start off, 2006 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 2,393 cc (6 cylinders), 2006 Audi A6 is equipped with a bigger engine. In terms of performance, 2006 Audi A6 (175 HP @ 6000 RPM) has 14 more horse power than 2004 Audi A4. (161 HP @ 5700 RPM) In normal driving conditions, 2006 Audi A6 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 148 kg more than 2006 Audi A6.
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, both vehicles can yield 230 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2004 Audi A4 | 2006 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2004 | 2006 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2393 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 161 HP | 175 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 230 Nm | 230 Nm |
| Torque RPM | 1950 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 77.4 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 222 km/hour | 230 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 9.1 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1630 kg | 1482 kg |
| Vehicle Length | 4580 mm | 4800 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1400 mm | 1460 mm |
| Wheelbase Size | 2760 mm | 2770 mm |
| Fuel Consumption Overall | 9.4 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
