2009 Mercedes-Benz CLS vs. 2007 Mercedes-Benz Viano
To start off, 2009 Mercedes-Benz CLS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz Viano. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz Viano would be higher. At 3,723 cc (6 cylinders), 2007 Mercedes-Benz Viano is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz CLS (288 HP) has 60 more horse power than 2007 Mercedes-Benz Viano. (228 HP). In normal driving conditions, 2009 Mercedes-Benz CLS should accelerate faster than 2007 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz Viano weights approximately 325 kg more than 2009 Mercedes-Benz CLS.
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 (365 Nm @ 3000 RPM) has 20 more torque (in Nm) than 2007 Mercedes-Benz Viano. (345 Nm @ 2500 RPM). This means 2009 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz Viano.
Compare all specifications:
| 2009 Mercedes-Benz CLS | 2007 Mercedes-Benz Viano | |
| Make | Mercedes-Benz | Mercedes-Benz |
| Model | CLS | Viano |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 3723 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 288 HP | 228 HP |
| Torque | 365 Nm | 345 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 93 mm | 97 mm |
| Engine Stroke Size | 86 mm | 84 mm |
| Engine Compression Ratio | 12.2:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 6.7 seconds | 10 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1735 kg | 2060 kg |
| Vehicle Length | 4920 mm | 3840 mm |
| Vehicle Width | 1880 mm | 1910 mm |
| Vehicle Height | 1440 mm | 1880 mm |
| Wheelbase Size | 2860 mm | 3210 mm |
| Fuel Consumption Overall | 9.1 L/100km | 12.9 L/100km |
| Fuel Tank Capacity | 80 L | 75 L |
