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 5,439 cc (8 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (469 HP @ 2650 RPM) has 217 more horse power than 2009 Audi A6. (252 HP @ 6500 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 275 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 (700 Nm @ 2650 RPM) has 370 more torque (in Nm) than 2009 Audi A6. (330 Nm @ 3250 RPM). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6. 2005 Mercedes-Benz SL has automatic transmission and 2009 Audi A6 has manual transmission. 2009 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
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 | 3123 cc | 5439 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 3 valves |
| Horse Power | 252 HP | 469 HP |
| Engine RPM | 6500 RPM | 2650 RPM |
| Torque | 330 Nm | 700 Nm |
| Torque RPM | 3250 RPM | 2650 RPM |
| Engine Bore Size | 84.5 mm | 97.1 mm |
| Engine Stroke Size | 92.8 mm | 92 mm |
| Engine Compression Ratio | 13.0:1 | 9.0:1 |
| Acceleration 0-100mph | 7.4 seconds | 4.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1680 kg | 1955 kg |
| Vehicle Length | 4920 mm | 4540 mm |
| Vehicle Width | 1860 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2850 mm | 2570 mm |
| Fuel Consumption Overall | 10.9 L/100km | 14.4 L/100km |
| Fuel Tank Capacity | 80 L | 80 L |
