2009 BMW 650 vs. 2012 Mercedes-Benz Viano
To start off, 2012 Mercedes-Benz Viano is newer by 3 year(s). Which means there will be less support and parts availability for 2009 BMW 650. In addition, the cost of maintenance, including insurance, on 2009 BMW 650 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 228 more horse power than 2012 Mercedes-Benz Viano. (134 HP @ 3600 RPM). In normal driving conditions, 2009 BMW 650 should accelerate faster than 2012 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2012 Mercedes-Benz Viano weights approximately 1305 kg more than 2009 BMW 650.
Because 2009 BMW 650 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 2009 BMW 650. However, in wet, icy, snow, or gravel driving conditions, 2012 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, 2009 BMW 650 (490 Nm @ 3400 RPM) has 180 more torque (in Nm) than 2012 Mercedes-Benz Viano. (310 Nm @ 1400 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2012 Mercedes-Benz Viano.
Compare all specifications:
| 2009 BMW 650 | 2012 Mercedes-Benz Viano | |
| Make | BMW | Mercedes-Benz |
| Model | 650 | Viano |
| Year Released | 2009 | 2012 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 2148 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 362 HP | 134 HP |
| Engine RPM | 6300 RPM | 3600 RPM |
| Torque | 490 Nm | 310 Nm |
| Torque RPM | 3400 RPM | 1400 RPM |
| Engine Bore Size | 92 mm | 88.1 mm |
| Engine Stroke Size | 82.7 mm | 88.3 mm |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 174 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 14.1 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1525 kg | 2830 kg |
| Vehicle Length | 4830 mm | 5000 mm |
| Vehicle Width | 1380 mm | 1880 mm |
| Vehicle Height | 1860 mm | 1910 mm |
| Wheelbase Size | 2790 mm | 3210 mm |
| Fuel Tank Capacity | 70 L | 79 L |
