2004 Audi A6 vs. 1999 Audi S8
To start off, 2004 Audi A6 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Audi S8. In addition, the cost of maintenance, including insurance, on 1999 Audi S8 would be higher. At 4,172 cc (8 cylinders), 1999 Audi S8 is equipped with a bigger engine. In terms of performance, 1999 Audi S8 (335 HP @ 7000 RPM) has 187 more horse power than 2004 Audi A6. (148 HP @ 6000 RPM) In normal driving conditions, 1999 Audi S8 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi S8 weights approximately 190 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.
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, 1999 Audi S8 (331 Nm @ 3400 RPM) has 96 more torque (in Nm) than 2004 Audi A6. (235 Nm @ 1750 RPM). This means 1999 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 1999 Audi S8 | |
| Make | Audi | Audi |
| Model | A6 | S8 |
| Year Released | 2004 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1799 cc | 4172 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 148 HP | 335 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 235 Nm | 331 Nm |
| Torque RPM | 1750 RPM | 3400 RPM |
| Engine Bore Size | 81.1 mm | 84.5 mm |
| Engine Stroke Size | 86.4 mm | 93 mm |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1730 kg |
| Vehicle Length | 4800 mm | 5040 mm |
| Vehicle Width | 1820 mm | 1890 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Tank Capacity | 70 L | 90 L |
