2005 Audi A6 vs. 1999 Audi A8
To start off, 2005 Audi A6 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Audi A8. In addition, the cost of maintenance, including insurance, on 1999 Audi A8 would be higher. At 2,771 cc (6 cylinders), 1999 Audi A8 is equipped with a bigger engine. In terms of performance, 1999 Audi A8 (190 HP @ 6000 RPM) has 12 more horse power than 2005 Audi A6. (178 HP @ 6000 RPM) In normal driving conditions, 1999 Audi A8 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A8 weights approximately 80 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 1999 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, 1999 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, 1999 Audi A8 (280 Nm @ 3200 RPM) has 50 more torque (in Nm) than 2005 Audi A6. (230 Nm @ 3000 RPM). This means 1999 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 1999 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2005 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2771 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 178 HP | 190 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 230 Nm | 280 Nm |
| Torque RPM | 3000 RPM | 3200 RPM |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1555 kg | 1635 kg |
| Vehicle Length | 4920 mm | 5040 mm |
| Vehicle Width | 1860 mm | 1890 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2850 mm | 2890 mm |
