1999 Audi S8 vs. 2006 Mercedes-Benz SL
To start off, 2006 Mercedes-Benz SL is newer by 7 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 4,966 cc (8 cylinders), 2006 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz SL (302 HP @ 5600 RPM) has 55 more horse power than 1999 Audi S8. (247 HP @ 7000 RPM) In normal driving conditions, 2006 Mercedes-Benz SL should accelerate faster than 1999 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi S8 weights approximately 315 kg more than 2006 Mercedes-Benz SL.
Because 1999 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2006 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 1999 Audi S8 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, 2006 Mercedes-Benz SL (460 Nm @ 2700 RPM) has 130 more torque (in Nm) than 1999 Audi S8. (330 Nm @ 3400 RPM). This means 2006 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi S8.
Compare all specifications:
| 1999 Audi S8 | 2006 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | S8 | SL |
| Year Released | 1999 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 4966 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 247 HP | 302 HP |
| Engine RPM | 7000 RPM | 5600 RPM |
| Torque | 330 Nm | 460 Nm |
| Torque RPM | 3400 RPM | 2700 RPM |
| Engine Bore Size | 84.5 mm | 97 mm |
| Engine Stroke Size | 93 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Acceleration 0-100mph | 6.6 seconds | 6.3 seconds |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1750 kg | 1435 kg |
| Vehicle Length | 5040 mm | 4540 mm |
| Vehicle Width | 1890 mm | 1820 mm |
| Vehicle Height | 1420 mm | 1300 mm |
| Wheelbase Size | 2890 mm | 2570 mm |
| Fuel Consumption | 9.5 L/100km | 10 L/100km |
| Fuel Consumption City | 21.7 L/100km | 14.9 L/100km |
| Fuel Consumption Overall | 13.9 L/100km | 12.9 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
