2006 Audi A6 vs. 2005 Audi A4
To start off, 2006 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. Both 2006 Audi A6 and 2005 Audi A4 are equipped with a 2,393 cc engine. In terms of performance, 2006 Audi A6 (175 HP @ 6000 RPM) has 14 more horse power than 2005 Audi A4. (161 HP @ 4000 RPM). In normal driving conditions, 2006 Audi A6 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 350 kg more than 2006 Audi A6.
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, 2005 Audi A4 (350 Nm @ 1500 RPM) has 120 more torque (in Nm) than 2006 Audi A6. (230 Nm @ 3200 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A6.
Compare all specifications:
| 2006 Audi A6 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 2393 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 175 HP | 161 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 230 Nm | 350 Nm |
| Torque RPM | 3200 RPM | 1500 RPM |
| Engine Bore Size | 81 mm | 78.3 mm |
| Engine Stroke Size | 77.4 mm | 86.4 mm |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 231 km/hour | 225 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 9.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1275 kg | 1625 kg |
| Vehicle Length | 4920 mm | 4550 mm |
| Vehicle Width | 2020 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2850 mm | 2660 mm |
| Fuel Consumption Overall | 9.7 L/100km | 7.2 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
