2004 Audi A6 vs. 2006 Audi A8
To start off, 2006 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 3,697 cc (8 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (276 HP @ 6000 RPM) has 56 more horse power than 2004 Audi A6. (220 HP @ 4000 RPM) In normal driving conditions, 2006 Audi A8 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 60 kg more than 2006 Audi A8.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A6. In wet, icy, snow, or gravel driving conditions, 2006 Audi A8 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 A8 (360 Nm) has 60 more torque (in Nm) than 2004 Audi A6. (300 Nm). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 2006 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2004 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 3697 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 220 HP | 276 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 300 Nm | 360 Nm |
| Engine Bore Size | 83 mm | 84.5 mm |
| Engine Stroke Size | 93 mm | 82.4 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1770 kg |
| Vehicle Length | 4880 mm | 5060 mm |
| Vehicle Width | 1820 mm | 1900 mm |
| Vehicle Height | 1480 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Consumption Highway | 9.6 L/100km | 8.8 L/100km |
| Fuel Consumption City | 13.2 L/100km | 17.3 L/100km |
| Fuel Consumption Overall | 11.4 L/100km | 11.9 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
