2009 Audi A6 vs. 2007 Audi A4
To start off, 2009 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 3,129 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP @ 6500 RPM) has 125 more horse power than 2007 Audi A4. (217 HP @ 5900 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 55 kg more than 2009 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, 2007 Audi A4 (300 Nm @ 2200 RPM) has 57 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2007 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2009 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 1984 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 217 HP |
| Engine RPM | 6500 RPM | 5900 RPM |
| Torque | 243 Nm | 300 Nm |
| Torque RPM | 3250 RPM | 2200 RPM |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 209 km/hour | 239 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 6.9 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1595 kg |
| Vehicle Length | 4920 mm | 4550 mm |
| Vehicle Width | 1470 mm | 1780 mm |
| Vehicle Height | 1860 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2660 mm |
| Fuel Consumption Overall | 15.5 L/100km | 9 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
