2009 Mercedes-Benz SL vs. 2008 Porsche 911
To start off, 2009 Mercedes-Benz SL is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Porsche 911. In addition, the cost of maintenance, including insurance, on 2008 Porsche 911 would be higher. At 6,208 cc (8 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (518 HP @ 6800 RPM) has 45 more horse power than 2008 Porsche 911. (473 HP @ 6000 RPM). In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 2008 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz SL weights approximately 1175 kg more than 2008 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2008 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, 2009 Mercedes-Benz SL (631 Nm @ 5200 RPM) has 11 more torque (in Nm) than 2008 Porsche 911. (620 Nm @ 1950 RPM). This means 2009 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2008 Porsche 911.
Compare all specifications:
| 2009 Mercedes-Benz SL | 2008 Porsche 911 | |
| Make | Mercedes-Benz | Porsche |
| Model | SL | 911 |
| Year Released | 2009 | 2008 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 6208 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 518 HP | 473 HP |
| Engine RPM | 6800 RPM | 6000 RPM |
| Torque | 631 Nm | 620 Nm |
| Torque RPM | 5200 RPM | 1950 RPM |
| Engine Compression Ratio | 9.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2830 kg | 1655 kg |
| Vehicle Length | 4540 mm | 4440 mm |
| Vehicle Width | 1820 mm | 1840 mm |
| Vehicle Height | 1300 mm | 1300 mm |
| Wheelbase Size | 2570 mm | 2360 mm |
| Fuel Consumption Overall | 16.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 80 L | 67 L |
