2009 Audi A8 vs. 2007 Mercedes-Benz SL
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz SL would be higher. At 5,439 cc (8 cylinders), 2007 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SL (469 HP @ 2650 RPM) has 262 more horse power than 2009 Audi A8. (207 HP @ 5500 RPM) In normal driving conditions, 2007 Mercedes-Benz SL should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SL weights approximately 265 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 2007 Mercedes-Benz SL is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Mercedes-Benz SL. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A8, being front wheel drive (FWD), will offer much better control with better grip. 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 Mercedes-Benz SL (701 Nm @ 2650 RPM) has 421 more torque (in Nm) than 2009 Audi A8. (280 Nm @ 3000 RPM). This means 2007 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 | 2007 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | SL |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2772 cc | 5439 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 207 HP | 469 HP |
| Engine RPM | 5500 RPM | 2650 RPM |
| Torque | 280 Nm | 701 Nm |
| Torque RPM | 3000 RPM | 2650 RPM |
| Engine Bore Size | 84.5 mm | 97 mm |
| Engine Stroke Size | 82.4 mm | 92 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 238 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8 seconds | 4.7 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1955 kg |
| Vehicle Length | 5070 mm | 4540 mm |
| Vehicle Width | 1900 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2950 mm | 2570 mm |
| Fuel Consumption Overall | 8.3 L/100km | 14.4 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
