2007 Audi S8 vs. 1998 Audi A8
To start off, 2007 Audi S8 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 Audi A8. In addition, the cost of maintenance, including insurance, on 1998 Audi A8 would be higher. At 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP) has 144 more horse power than 1998 Audi A8. (300 HP). In normal driving conditions, 2007 Audi S8 should accelerate faster than 1998 Audi A8.
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, 2007 Audi S8 (540 Nm) has 140 more torque (in Nm) than 1998 Audi A8. (400 Nm). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 1998 Audi A8.
Compare all specifications:
| 2007 Audi S8 | 1998 Audi A8 | |
| Make | Audi | Audi |
| Model | S8 | A8 |
| Year Released | 2007 | 1998 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 4172 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 300 HP |
| Torque | 540 Nm | 400 Nm |
| Engine Bore Size | 84.5 mm | 84.6 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5070 mm | 5040 mm |
| Vehicle Width | 1900 mm | 1890 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2950 mm | 2890 mm |
