2006 Audi A4 vs. 2008 Audi A6
To start off, 2008 Audi A6 is newer by 2 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 2,391 cc (6 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (168 HP @ 6000 RPM) has 54 more horse power than 2006 Audi A4. (114 HP @ 4000 RPM) In normal driving conditions, 2008 Audi A6 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 100 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.
Because 2008 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Audi A4. In wet, icy, snow, or gravel driving conditions, 2008 Audi A6 will offer significantly more control. 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 (285 Nm @ 1900 RPM) has 55 more torque (in Nm) than 2008 Audi A6. (230 Nm @ 3200 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2006 Audi A4 | 2008 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2006 | 2008 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2391 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 114 HP | 168 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 285 Nm | 230 Nm |
| Torque RPM | 1900 RPM | 3200 RPM |
| Engine Bore Size | 79.5 mm | 81 mm |
| Engine Stroke Size | 95.5 mm | 77.4 mm |
| Engine Compression Ratio | 19.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 197 km/hour | 218 km/hour |
| Acceleration 0-100mph | 11.5 seconds | 9.6 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1540 kg | 1640 kg |
| Vehicle Length | 4550 mm | 4800 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2770 mm |
| Fuel Consumption Overall | 5.7 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
