1999 Audi S8 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 10 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 98 more horse power than 2009 Audi A4. (237 HP @ 4000 RPM). In normal driving conditions, 1999 Audi S8 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi S8 weights approximately 35 kg more than 2009 Audi A4. 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, 2009 Audi A4 (500 Nm @ 1500 RPM) has 169 more torque (in Nm) than 1999 Audi S8. (331 Nm @ 3400 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi S8.
Compare all specifications:
| 1999 Audi S8 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | S8 | A4 |
| Year Released | 1999 | 2009 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2965 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 335 HP | 237 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 331 Nm | 500 Nm |
| Torque RPM | 3400 RPM | 1500 RPM |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 93 mm | 91.4 mm |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.4 seconds | 6.3 seconds |
| Drive Type | AWD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1730 kg | 1695 kg |
| Vehicle Length | 5040 mm | 4710 mm |
| Vehicle Width | 1890 mm | 1830 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2890 mm | 2810 mm |
| Fuel Consumption Overall | 13.7 L/100km | 7.1 L/100km |
| Fuel Tank Capacity | 90 L | 64 L |
