2008 Audi A6 vs. 2003 Audi A8
To start off, 2008 Audi A6 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Audi A8. In addition, the cost of maintenance, including insurance, on 2003 Audi A8 would be higher. At 4,163 cc, 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (330 HP @ 6600 RPM) has 58 more horse power than 2003 Audi A8. (272 HP @ 3750 RPM). In normal driving conditions, 2008 Audi A6 should accelerate faster than 2003 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 75 kg more than 2008 Audi A6.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2003 Audi A8 (650 Nm @ 1800 RPM) has 229 more torque (in Nm) than 2008 Audi A6. (421 Nm @ 3500 RPM). This means 2003 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2003 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 3936 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 272 HP |
| Engine RPM | 6600 RPM | 3750 RPM |
| Torque | 421 Nm | 650 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 95.5 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 6.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1745 kg | 1820 kg |
| Vehicle Length | 4920 mm | 5190 mm |
| Vehicle Width | 1860 mm | 1900 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 3080 mm |
| Fuel Consumption Highway | 9.5 L/100km | 7.5 L/100km |
| Fuel Consumption City | 19 L/100km | 13.4 L/100km |
| Fuel Consumption Overall | 11.6 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 80 L | 90 L |
