2005 Mercedes-Benz SL vs. 2009 Porsche 911
To start off, 2009 Porsche 911 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 5,441 cc (8 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (493 HP @ 4200 RPM) has 20 more horse power than 2009 Porsche 911. (473 HP @ 6000 RPM). In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2009 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 391 kg more than 2009 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Porsche 911 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 Porsche 911 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) has 80 more torque (in Nm) than 2009 Porsche 911. (620 Nm). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche 911.
Compare all specifications:
| 2005 Mercedes-Benz SL | 2009 Porsche 911 | |
| Make | Mercedes-Benz | Porsche |
| Model | SL | 911 |
| Year Released | 2005 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5441 cc | 3599 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 493 HP | 473 HP |
| Engine RPM | 4200 RPM | 6000 RPM |
| Torque | 700 Nm | 620 Nm |
| Engine Compression Ratio | 9.0:1 | 9.4:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1921 kg | 1530 kg |
| Vehicle Length | 4540 mm | 4440 mm |
| Vehicle Width | 1820 mm | 1300 mm |
| Vehicle Height | 1300 mm | 1840 mm |
| Wheelbase Size | 2570 mm | 2360 mm |
| Fuel Consumption Highway | 11.8 L/100km | 10.2 L/100km |
| Fuel Consumption City | 16.8 L/100km | 14.7 L/100km |
| Fuel Consumption Overall | 14.7 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 80 L | 64 L |
