2009 Audi A6 vs. 2009 Audi A4
To start off, both 2009 Audi A6 and 2009 Audi A4 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,163 cc (8 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (350 HP @ 6800 RPM) has 132 more horse power than 2009 Audi A4. (218 HP @ 5900 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2009 Audi A4.
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, 2009 Audi A6 (441 Nm @ 3500 RPM) has 141 more torque (in Nm) than 2009 Audi A4. (300 Nm @ 2200 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A6 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2009 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1984 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 218 HP |
| Engine RPM | 6800 RPM | 5900 RPM |
| Torque | 441 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 2200 RPM |
| Engine Bore Size | 84.5 mm | 82.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4930 mm | 4610 mm |
| Vehicle Width | 2040 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2660 mm |
| Fuel Consumption Overall | 13.2 L/100km | 9 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
