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 3,121 cc (6 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (252 HP @ 6500 RPM) has 123 more horse power than 2006 Audi A4. (129 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 315 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 (330 Nm @ 3250 RPM) has 135 more torque (in Nm) than 2006 Audi A4. (195 Nm @ 3300 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 | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 3121 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 129 HP | 252 HP |
| Engine RPM | 5700 RPM | 6500 RPM |
| Torque | 195 Nm | 330 Nm |
| Torque RPM | 3300 RPM | 3250 RPM |
| Engine Bore Size | 82.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| Engine Compression Ratio | 10.3:1 | 13.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 208 km/hour | 250 km/hour |
| Acceleration 0-100mph | 10.1 seconds | 7.1 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1365 kg | 1680 kg |
| Vehicle Length | 4550 mm | 4920 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2850 mm |
| Fuel Consumption Overall | 8 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
