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 2,696 cc (6 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (178 HP @ 3300 RPM) has 17 more horse power than 2006 Audi A4. (161 HP @ 5700 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 185 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, 2008 Audi A6 (380 Nm @ 1400 RPM) has 155 more torque (in Nm) than 2006 Audi A4. (225 Nm @ 1800 RPM). This means 2008 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
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 | 1780 cc | 2696 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 178 HP |
| Engine RPM | 5700 RPM | 3300 RPM |
| Torque | 225 Nm | 380 Nm |
| Torque RPM | 1800 RPM | 1400 RPM |
| Engine Bore Size | 81 mm | 83 mm |
| Engine Stroke Size | 86.4 mm | 83.1 mm |
| Engine Compression Ratio | 9.3:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 220 km/hour | 223 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 9.1 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 | 1510 kg | 1695 kg |
| Vehicle Length | 4590 mm | 4940 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2650 mm | 2850 mm |
| Fuel Consumption Overall | 8.3 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
