2009 Audi A8 vs. 2006 Mercedes-Benz SL
To start off, 2009 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2006 Mercedes-Benz SL would be higher. At 5,461 cc (8 cylinders), 2006 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz SL (383 HP @ 6000 RPM) has 53 more horse power than 2009 Audi A8. (330 HP @ 6500 RPM) In normal driving conditions, 2006 Mercedes-Benz SL should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz SL weights approximately 55 kg more than 2009 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2009 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, 2006 Mercedes-Benz SL (530 Nm @ 2800 RPM) has 100 more torque (in Nm) than 2009 Audi A8. (430 Nm @ 3500 RPM). This means 2006 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 2006 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | SL |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 5461 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 383 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 430 Nm | 530 Nm |
| Torque RPM | 3500 RPM | 2800 RPM |
| Engine Bore Size | 84.5 mm | 98 mm |
| Engine Stroke Size | 93 mm | 90.5 mm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 5.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1855 kg | 1910 kg |
| Vehicle Length | 5060 mm | 4540 mm |
| Vehicle Width | 1900 mm | 1830 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2950 mm | 2570 mm |
| Fuel Consumption Overall | 11.9 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
