2008 Mercedes-Benz SL vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2008 Mercedes-Benz SL would be higher. At 5,439 cc (8 cylinders), 2008 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2008 Mercedes-Benz SL (510 HP @ 6100 RPM) has 189 more horse power than 2009 Porsche 911. (321 HP @ 6800 RPM). In normal driving conditions, 2008 Mercedes-Benz SL should accelerate faster than 2009 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz SL weights approximately 425 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 2008 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, 2008 Mercedes-Benz SL (720 Nm @ 2600 RPM) has 350 more torque (in Nm) than 2009 Porsche 911. (370 Nm @ 4250 RPM). This means 2008 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche 911.
Compare all specifications:
| 2008 Mercedes-Benz SL | 2009 Porsche 911 | |
| Make | Mercedes-Benz | Porsche |
| Model | SL | 911 |
| Year Released | 2008 | 2009 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 5439 cc | 3596 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 510 HP | 321 HP |
| Engine RPM | 6100 RPM | 6800 RPM |
| Torque | 720 Nm | 370 Nm |
| Torque RPM | 2600 RPM | 4250 RPM |
| Engine Bore Size | 97 mm | 96 mm |
| Engine Stroke Size | 92 mm | 82.8 mm |
| Engine Compression Ratio | 9.0:1 | 11.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 275 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 5.8 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1955 kg | 1530 kg |
| Vehicle Length | 4540 mm | 4430 mm |
| Vehicle Width | 1820 mm | 1320 mm |
| Vehicle Height | 1300 mm | 1860 mm |
| Wheelbase Size | 2570 mm | 2360 mm |
| Fuel Consumption Overall | 14.6 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 80 L | 67 L |
