2009 Mercedes-Benz SL vs. 2008 Porsche Cayenne
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 Cayenne. In addition, the cost of maintenance, including insurance, on 2008 Porsche Cayenne would be higher. At 5,980 cc (12 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (605 HP) has 318 more horse power than 2008 Porsche Cayenne. (287 HP). In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 2008 Porsche Cayenne. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz SL weights approximately 670 kg more than 2008 Porsche Cayenne. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Porsche Cayenne 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 Cayenne 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 (1,000 Nm) has 615 more torque (in Nm) than 2008 Porsche Cayenne. (385 Nm). This means 2009 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2008 Porsche Cayenne.
Compare all specifications:
| 2009 Mercedes-Benz SL | 2008 Porsche Cayenne | |
| Make | Mercedes-Benz | Porsche |
| Model | SL | Cayenne |
| Year Released | 2009 | 2008 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 5980 cc | 3598 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 605 HP | 287 HP |
| Torque | 1000 Nm | 385 Nm |
| Engine Bore Size | 82.6 mm | 89 mm |
| Engine Stroke Size | 93 mm | 96.4 mm |
| Engine Compression Ratio | 9.0:1 | 12.3:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 2830 kg | 2160 kg |
| Vehicle Length | 4540 mm | 4800 mm |
| Vehicle Width | 1820 mm | 1930 mm |
| Vehicle Height | 1300 mm | 1710 mm |
| Wheelbase Size | 2570 mm | 2860 mm |
| Fuel Consumption Overall | 16.8 L/100km | 12.9 L/100km |
| Fuel Tank Capacity | 80 L | 100 L |
