2009 Audi A6 vs. 2005 Mercedes-Benz SL
To start off, 2009 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SL would be higher. At 4,966 cc (8 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (302 HP @ 4200 RPM) has 2 more horse power than 2009 Audi A6. (300 HP @ 5100 RPM) In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 949 kg more than 2009 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2009 Audi A6 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, 2005 Mercedes-Benz SL (470 Nm) has 50 more torque (in Nm) than 2009 Audi A6. (420 Nm). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2005 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | SL |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2995 cc | 4966 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 300 HP | 302 HP |
| Engine RPM | 5100 RPM | 4200 RPM |
| Torque | 420 Nm | 470 Nm |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 895 kg | 1844 kg |
| Vehicle Length | 4930 mm | 4540 mm |
| Vehicle Width | 2040 mm | 1820 mm |
| Vehicle Height | 1460 mm | 1300 mm |
| Wheelbase Size | 2850 mm | 2570 mm |
| Fuel Consumption | 9.1 L/100km | 10.2 L/100km |
| Fuel Consumption City | 13.1 L/100km | 14.7 L/100km |
| Fuel Consumption Overall | 11.2 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 80 L | 80 L |
