2003 Audi A6 vs. 2006 Audi A8
To start off, 2006 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 Audi A6 would be higher. At 3,123 cc (6 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (256 HP) has 128 more horse power than 2003 Audi A6. (128 HP) In normal driving conditions, 2006 Audi A8 should accelerate faster than 2003 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 450 kg more than 2003 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 2006 Audi A8 (330 Nm @ 3250 RPM) has 135 more torque (in Nm) than 2003 Audi A6. (195 Nm @ 3300 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2003 Audi A6 | 2006 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 3123 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 128 HP | 256 HP |
| Torque | 195 Nm | 330 Nm |
| Torque RPM | 3300 RPM | 3250 RPM |
| Engine Compression Ratio | 10.3:1 | 13.0:1 |
| Top Speed | 198 km/hour | 245 km/hour |
| Acceleration 0-100mph | 10.8 seconds | 7.7 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1880 kg |
| Vehicle Length | 4800 mm | 5060 mm |
| Vehicle Width | 1820 mm | 1900 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 2770 mm | 2950 mm |
| Fuel Consumption Overall | 8.4 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
