2009 Audi A6 vs. 2006 Audi A4
To start off, 2009 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Audi A4. In addition, the cost of maintenance, including insurance, on 2006 Audi A4 would be higher. At 1,968 cc (4 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (149 HP @ 5700 RPM) has 11 more horse power than 2006 Audi A4. (138 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 215 kg more than 2006 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 (321 Nm @ 1750 RPM) has 111 more torque (in Nm) than 2009 Audi A6. (210 Nm @ 1750 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6. 2006 Audi A4 has automatic transmission and 2009 Audi A6 has manual transmission. 2009 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A6 | 2006 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2009 | 2006 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1968 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 149 HP | 138 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 210 Nm | 321 Nm |
| Torque RPM | 1750 RPM | 1750 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 95.5 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 214 km/hour | 207 km/hour |
| Acceleration 0-100mph | 9.9 seconds | 9.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1490 kg | 1275 kg |
| Vehicle Length | 4800 mm | 4550 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2770 mm | 2660 mm |
| Fuel Consumption Overall | 8.5 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
