2009 Mercedes-Benz CLS vs. 2005 Porsche 911
To start off, 2009 Mercedes-Benz CLS is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Porsche 911. In addition, the cost of maintenance, including insurance, on 2005 Porsche 911 would be higher. At 6,207 cc (8 cylinders), 2009 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz CLS (507 HP @ 6800 RPM) has 152 more horse power than 2005 Porsche 911. (355 HP @ 6800 RPM). In normal driving conditions, 2009 Mercedes-Benz CLS should accelerate faster than 2005 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz CLS weights approximately 405 kg more than 2005 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 CLS (630 Nm @ 5200 RPM) has 245 more torque (in Nm) than 2005 Porsche 911. (385 Nm @ 4600 RPM). This means 2009 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911.
Compare all specifications:
| 2009 Mercedes-Benz CLS | 2005 Porsche 911 | |
| Make | Mercedes-Benz | Porsche |
| Model | CLS | 911 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 6207 cc | 3818 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 507 HP | 355 HP |
| Engine RPM | 6800 RPM | 6800 RPM |
| Torque | 630 Nm | 385 Nm |
| Torque RPM | 5200 RPM | 4600 RPM |
| Engine Bore Size | 102.2 mm | 99 mm |
| Engine Stroke Size | 94.6 mm | 83 mm |
| Engine Compression Ratio | 11.3:1 | 11.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 293 km/hour |
| Acceleration 0-100mph | 4.5 seconds | 4.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1905 kg | 1500 kg |
| Vehicle Length | 4920 mm | 4430 mm |
| Vehicle Width | 1880 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2860 mm | 2360 mm |
| Fuel Consumption Overall | 14.5 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 80 L | 64 L |
