2008 BMW M5 vs. 2009 Mercedes-Benz Viano
To start off, 2009 Mercedes-Benz Viano is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW M5. In addition, the cost of maintenance, including insurance, on 2008 BMW M5 would be higher. At 4,999 cc (10 cylinders), 2008 BMW M5 is equipped with a bigger engine. In terms of performance, 2008 BMW M5 (500 HP @ 7750 RPM) has 352 more horse power than 2009 Mercedes-Benz Viano. (148 HP @ 3800 RPM). In normal driving conditions, 2008 BMW M5 should accelerate faster than 2009 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz Viano weights approximately 1000 kg more than 2008 BMW M5.
Because 2008 BMW M5 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 2008 BMW M5. However, in wet, icy, snow, or gravel driving conditions, 2009 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, 2008 BMW M5 (520 Nm @ 6100 RPM) has 190 more torque (in Nm) than 2009 Mercedes-Benz Viano. (330 Nm @ 1800 RPM). This means 2008 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz Viano.
Compare all specifications:
| 2008 BMW M5 | 2009 Mercedes-Benz Viano | |
| Make | BMW | Mercedes-Benz |
| Model | M5 | Viano |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 4999 cc | 2148 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 500 HP | 148 HP |
| Engine RPM | 7750 RPM | 3800 RPM |
| Torque | 520 Nm | 330 Nm |
| Torque RPM | 6100 RPM | 1800 RPM |
| Engine Bore Size | 92 mm | 88.1 mm |
| Engine Stroke Size | 75.2 mm | 88.3 mm |
| Engine Compression Ratio | 12.0:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 4.7 seconds | 13 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1830 kg | 2830 kg |
| Vehicle Length | 4860 mm | 5000 mm |
| Vehicle Width | 1850 mm | 1880 mm |
| Vehicle Height | 1480 mm | 1910 mm |
| Wheelbase Size | 2900 mm | 3210 mm |
| Fuel Consumption Overall | 14.8 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 70 L | 79 L |
