2012 BMW 640 vs. 2011 Mercedes-Benz Viano
To start off, 2012 BMW 640 is newer by 1 year(s). Which means there will be less support and parts availability for 2011 Mercedes-Benz Viano. In addition, the cost of maintenance, including insurance, on 2011 Mercedes-Benz Viano would be higher. At 2,993 cc (6 cylinders), 2012 BMW 640 is equipped with a bigger engine. In terms of performance, 2012 BMW 640 (311 HP @ 4400 RPM) has 177 more horse power than 2011 Mercedes-Benz Viano. (134 HP @ 3600 RPM). In normal driving conditions, 2012 BMW 640 should accelerate faster than 2011 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz Viano weights approximately 1040 kg more than 2012 BMW 640.
Because 2012 BMW 640 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2012 BMW 640. However, in wet, icy, snow, or gravel driving conditions, 2011 Mercedes-Benz Viano, being front wheel drive (FWD), will offer much better control with better grip. 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, 2012 BMW 640 (630 Nm @ 1500 RPM) has 320 more torque (in Nm) than 2011 Mercedes-Benz Viano. (310 Nm @ 1400 RPM). This means 2012 BMW 640 will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz Viano.
Compare all specifications:
| 2012 BMW 640 | 2011 Mercedes-Benz Viano | |
| Make | BMW | Mercedes-Benz |
| Model | 640 | Viano |
| Year Released | 2012 | 2011 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2148 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 311 HP | 134 HP |
| Engine RPM | 4400 RPM | 3600 RPM |
| Torque | 630 Nm | 310 Nm |
| Torque RPM | 1500 RPM | 1400 RPM |
| Engine Bore Size | 90 mm | 88.1 mm |
| Engine Stroke Size | 84 mm | 88.3 mm |
| Fuel Type | Diesel | Diesel |
| Top Speed | 250 km/hour | 174 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 14.1 seconds |
| Drive Type | Rear | Front |
| Transmission Type | 8-speed shiftable automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1790 kg | 2830 kg |
| Vehicle Length | 4894 mm | 5000 mm |
| Vehicle Width | 1894 mm | 1880 mm |
| Vehicle Height | 1369 mm | 1910 mm |
| Wheelbase Size | 2855 mm | 3210 mm |
| Fuel Tank Capacity | 70 L | 79 L |
