2003 Audi A8 vs. 2005 Audi A6
To start off, 2005 Audi A6 is newer by 2 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 4,172 cc (8 cylinders), 2003 Audi A8 is equipped with a bigger engine. In terms of performance, 2003 Audi A8 (330 HP @ 6500 RPM) has 152 more horse power than 2005 Audi A6. (178 HP @ 6000 RPM). In normal driving conditions, 2003 Audi A8 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 385 kg more than 2005 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A6. In wet, icy, snow, or gravel driving conditions, 2003 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, 2003 Audi A8 (430 Nm @ 3500 RPM) has 200 more torque (in Nm) than 2005 Audi A6. (230 Nm @ 3000 RPM). This means 2003 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2003 Audi A8 | 2005 Audi A6 | |
| Make | Audi | Audi |
| Model | A8 | A6 |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 178 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 430 Nm | 230 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Bore Size | 84.5 mm | 81.1 mm |
| Engine Stroke Size | 93 mm | 77.4 mm |
| Engine Compression Ratio | 11.0:1 | 10.3:1 |
| Acceleration 0-100mph | 6.7 seconds | 9.2 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1940 kg | 1555 kg |
| Vehicle Length | 5190 mm | 4920 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 3080 mm | 2850 mm |
| Fuel Consumption Highway | 8.7 L/100km | 7.3 L/100km |
| Fuel Consumption City | 17.5 L/100km | 13.9 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
