2009 BMW 635 vs. 2006 Mercedes-Benz R
To start off, 2009 BMW 635 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Mercedes-Benz R. In addition, the cost of maintenance, including insurance, on 2006 Mercedes-Benz R would be higher. At 6,208 cc (8 cylinders), 2006 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz R (504 HP @ 6800 RPM) has 222 more horse power than 2009 BMW 635. (282 HP @ 4400 RPM) In normal driving conditions, 2006 Mercedes-Benz R should accelerate faster than 2009 BMW 635.
Because 2006 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 635. In wet, icy, snow, or gravel driving conditions, 2006 Mercedes-Benz R will offer significantly more control. 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, 2006 Mercedes-Benz R (630 Nm @ 5200 RPM) has 50 more torque (in Nm) than 2009 BMW 635. (580 Nm @ 1750 RPM). This means 2006 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 635.
Compare all specifications:
| 2009 BMW 635 | 2006 Mercedes-Benz R | |
| Make | BMW | Mercedes-Benz |
| Model | 635 | R |
| Year Released | 2009 | 2006 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 6208 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 504 HP |
| Engine RPM | 4400 RPM | 6800 RPM |
| Torque | 580 Nm | 630 Nm |
| Torque RPM | 1750 RPM | 5200 RPM |
| Engine Bore Size | 84 mm | 102.2 mm |
| Engine Stroke Size | 90 mm | 94.6 mm |
| Engine Compression Ratio | 17.0:1 | 11.3:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 5.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 6 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4830 mm | 5160 mm |
| Vehicle Width | 1860 mm | 1930 mm |
| Vehicle Height | 1380 mm | 1640 mm |
| Wheelbase Size | 2790 mm | 3220 mm |
| Fuel Consumption Overall | 7.4 L/100km | 16.3 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
