2006 Audi A6 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Audi A6. In addition, the cost of maintenance, including insurance, on 2006 Audi A6 would be higher. At 3,197 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (261 HP @ 6500 RPM) has 40 more horse power than 2006 Audi A6. (221 HP @ 4000 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 2006 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A6 weights approximately 135 kg more than 2009 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 A6 (450 Nm @ 1400 RPM) has 120 more torque (in Nm) than 2009 Audi A4. (330 Nm @ 3000 RPM). This means 2006 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2006 Audi A6 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 3197 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 221 HP | 261 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 450 Nm | 330 Nm |
| Torque RPM | 1400 RPM | 3000 RPM |
| Engine Bore Size | 83 mm | 84.6 mm |
| Engine Stroke Size | 91.4 mm | 92.8 mm |
| Engine Compression Ratio | 20.0:1 | 12.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 7.6 seconds | 6.4 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 | 1765 kg | 1630 kg |
| Vehicle Length | 4920 mm | 4710 mm |
| Vehicle Width | 2020 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2850 mm | 2810 mm |
| Fuel Consumption Overall | 6.3 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 80 L | 64 L |
