2009 BMW 635 vs. 2012 Mercedes-Benz S
To start off, 2012 Mercedes-Benz S is newer by 3 year(s). Which means there will be less support and parts availability for 2009 BMW 635. In addition, the cost of maintenance, including insurance, on 2009 BMW 635 would be higher. At 4,700 cc (8 cylinders), 2012 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2012 Mercedes-Benz S (429 HP @ 5250 RPM) has 147 more horse power than 2009 BMW 635. (282 HP @ 4400 RPM) In normal driving conditions, 2012 Mercedes-Benz S should accelerate faster than 2009 BMW 635.
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, 2012 Mercedes-Benz S (699 Nm @ 1800 RPM) has 119 more torque (in Nm) than 2009 BMW 635. (580 Nm @ 1750 RPM). This means 2012 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 635.
Compare all specifications:
| 2009 BMW 635 | 2012 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 635 | S |
| Year Released | 2009 | 2012 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4700 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 429 HP |
| Engine RPM | 4400 RPM | 5250 RPM |
| Torque | 580 Nm | 699 Nm |
| Torque RPM | 1750 RPM | 1800 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4830 mm | 5245 mm |
| Vehicle Width | 1860 mm | 1872 mm |
| Vehicle Height | 1380 mm | 1473 mm |
| Wheelbase Size | 2790 mm | 3165 mm |
| Fuel Tank Capacity | 70 L | 90 L |
