1999 Audi S8 vs. 2012 Audi A8
To start off, 2012 Audi A8 is newer by 13 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 6,300 cc (12 cylinders), 2012 Audi A8 is equipped with a bigger engine. In terms of performance, 2012 Audi A8 (500 HP @ 6200 RPM) has 253 more horse power than 1999 Audi S8. (247 HP @ 7000 RPM) In normal driving conditions, 2012 Audi A8 should accelerate faster than 1999 Audi S8.
Both vehicles are all wheel drive (AWD) - 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, 2012 Audi A8 (627 Nm @ 4750 RPM) has 297 more torque (in Nm) than 1999 Audi S8. (330 Nm @ 3400 RPM). This means 2012 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi S8.
Compare all specifications:
| 1999 Audi S8 | 2012 Audi A8 | |
| Make | Audi | Audi |
| Model | S8 | A8 |
| Year Released | 1999 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 6300 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 500 HP |
| Engine RPM | 7000 RPM | 6200 RPM |
| Torque | 330 Nm | 627 Nm |
| Torque RPM | 3400 RPM | 4750 RPM |
| Top Speed | 250 km/hour | 250 km/hour |
| Drive Type | AWD | AWD |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5040 mm | 5268 mm |
| Vehicle Width | 1890 mm | 1948 mm |
| Vehicle Height | 1420 mm | 1471 mm |
| Wheelbase Size | 2890 mm | 3122 mm |
| Fuel Consumption | 9.5 L/100km | 11.2 L/100km |
| Fuel Consumption City | 21.7 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 90 L | 90 L |
