2004 Audi A6 vs. 2003 Audi A8
To start off, 2004 Audi A6 is newer by 1 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 2,976 cc (6 cylinders), 2003 Audi A8 is equipped with a bigger engine. In terms of performance, 2003 Audi A8 (217 HP @ 6300 RPM) has 69 more horse power than 2004 Audi A6. (148 HP @ 6000 RPM) In normal driving conditions, 2003 Audi A8 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 315 kg more than 2004 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Audi A8. In wet, icy, snow, or gravel driving conditions, 2004 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, 2003 Audi A8 (300 Nm @ 8200 RPM) has 65 more torque (in Nm) than 2004 Audi A6. (235 Nm @ 1750 RPM). This means 2003 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 | 2003 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2004 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1799 cc | 2976 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 148 HP | 217 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 235 Nm | 300 Nm |
| Torque RPM | 1750 RPM | 8200 RPM |
| Engine Bore Size | 81.1 mm | 82.6 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1855 kg |
| Vehicle Length | 4800 mm | 5190 mm |
| Vehicle Width | 1820 mm | 1900 mm |
| Vehicle Height | 1460 mm | 1460 mm |
| Wheelbase Size | 2770 mm | 3080 mm |
| Fuel Tank Capacity | 70 L | 90 L |
