2008 Audi A6 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A6. In addition, the cost of maintenance, including insurance, on 2008 Audi A6 would be higher. At 2,967 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (230 HP @ 4000 RPM) has 52 more horse power than 2008 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 81 kg more 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 A4 (450 Nm @ 1400 RPM) has 70 more torque (in Nm) than 2008 Audi A6. (380 Nm @ 1400 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2008 | 2009 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 2967 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 178 HP | 230 HP |
| Engine RPM | 3300 RPM | 4000 RPM |
| Torque | 380 Nm | 450 Nm |
| Torque RPM | 1400 RPM | 1400 RPM |
| Engine Bore Size | 83 mm | 83 mm |
| Engine Stroke Size | 83.1 mm | 91.4 mm |
| Engine Compression Ratio | 17.5:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 215 km/hour | 242 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 7.3 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1875 kg | 1794 kg |
| Vehicle Length | 4940 mm | 4580 mm |
| Vehicle Width | 1870 mm | 1780 mm |
| Vehicle Height | 1530 mm | 1400 mm |
| Wheelbase Size | 2840 mm | 2660 mm |
| Fuel Consumption Overall | 8.7 L/100km | 8 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
