2007 Mercedes-Benz Viano vs. 2009 BMW 650
To start off, 2009 BMW 650 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 4,799 cc (8 cylinders), 2009 BMW 650 is equipped with a bigger engine. In terms of performance, 2009 BMW 650 (362 HP @ 6300 RPM) has 175 more horse power than 2007 Mercedes-Benz Viano. (187 HP @ 5600 RPM) In normal driving conditions, 2009 BMW 650 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 150 kg more than 2009 BMW 650.
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 BMW 650 (490 Nm @ 3400 RPM) has 220 more torque (in Nm) than 2007 Mercedes-Benz Viano. (270 Nm @ 2750 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz Viano.
Compare all specifications:
| 2007 Mercedes-Benz Viano | 2009 BMW 650 | |
| Make | Mercedes-Benz | BMW |
| Model | Viano | 650 |
| Year Released | 2007 | 2009 |
| Body Type | Minivan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3199 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 187 HP | 362 HP |
| Engine RPM | 5600 RPM | 6300 RPM |
| Torque | 270 Nm | 490 Nm |
| Torque RPM | 2750 RPM | 3400 RPM |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 176 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 5.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2085 kg | 1935 kg |
| Vehicle Length | 5000 mm | 4830 mm |
| Vehicle Width | 1910 mm | 1860 mm |
| Vehicle Height | 1880 mm | 1380 mm |
| Wheelbase Size | 3210 mm | 2790 mm |
| Fuel Consumption Overall | 12.5 L/100km | 12.6 L/100km |
| Fuel Tank Capacity | 75 L | 70 L |
